Android Dev error Chunk buffer must be 16 byte aligned

When I build not development build all works fine.
On develop build ECS complitly die with log.
Does anyone know what could be the problem?

Code (CSharp):

1. 04-19 13:18:56.156: E/Unity(10492): AssertionException: Assertion failure. Value was False
2. 04-19 13:18:56.156: E/Unity(10492): Expected: True
3. 04-19 13:18:56.156: E/Unity(10492): Chunk buffer must be 16 byte aligned
4. 04-19 13:18:56.156: E/Unity(10492):   at UnityEngine.Assertions.Assert.Fail (System.String message, System.String userMessage) [0x0003c] in /Users/builduser/buildslave/unity/build/Runtime/Export/Assertions/Assert/AssertBase.cs:29
5. 04-19 13:18:56.156: E/Unity(10492):   at UnityEngine.Assertions.Assert.IsTrue (System.Boolean condition, System.String message) [0x0000e] in /Users/builduser/buildslave/unity/build/Runtime/Export/Assertions/Assert/AssertBool.cs:20
6. 04-19 13:18:56.156: E/Unity(10492):   at Unity.Assertions.Assert.IsTrue (System.Boolean condition, System.String message) [0x00008] in C:\Repos\awars\Library\PackageCache\com.unity.entities@0.0.12-preview.29\Unity.Entities\Stubs\Unity.Assertions\Assert.cs:24
7. 04-19 13:18:56.156: E/Unity(10492):   at Unity.Entities.ArchetypeManager..ctor (Unity.Entities.SharedComponentDataManager sharedComponentManager, Unity.Entities.EntityDataManager* entityDataManager, Unity.Entities.EntityGroupManager groupManager) [0x00092] in C:\Repos\awars\Library\PackageCache\com.unity.entities@0.0.12-preview.29\Unit
8. 04-19 13:18:56.406: I/Unity(10492): Added pool 'Spells'
9. 04-19 13:18:56.406: I/Unity(10492):  #0 0x9e76bd92 (libunity.so) GetStacktrace(int) 0x25
10. 04-19 13:18:56.406: I/Unity(10492):  #1 0x9f196244 (libunity.so) DebugStringToFile(DebugStringToFileData const&) 0x187
11. 04-19 13:18:56.406: I/Unity(10492):  #2 0x9ecf96b2 (libunity.so) DebugLogHandler::Internal_Log(LogType, LogOption, core::basic_string<char, core::StringStorageDefault<char> >, Object*) 0x65
12. 04-19 13:18:56.406: I/Unity(10492):  #3 0x9ecf9602 (libunity.so) DebugLogHandler_CUSTOM_Internal_Log(LogType, LogOption, ScriptingBackendNativeStringPtrOpaque*, ScriptingBackendNativeObjectPtrOpaque*) 0xb5
13. 04-19 13:18:56.406: I/Unity(10492):
14. 04-19 13:18:56.406: I/Unity(10492): (Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 35)
15. 04-19 13:18:56.731: I/Unity(10492): Added pool 'Units'
16. 04-19 13:18:56.731: I/Unity(10492):  #0 0x9e76bd92 (libunity.so) GetStacktrace(int) 0x25
17. 04-19 13:18:56.731: I/Unity(10492):  #1 0x9f196244 (libunity.so) DebugStringToFile(DebugStringToFileData const&) 0x187
18. 04-19 13:18:56.731: I/Unity(10492):  #2 0x9ecf96b2 (libunity.so) DebugLogHandler::Internal_Log(LogType, LogOption, core::basic_string<char, core::StringStorageDefault<char> >, Object*) 0x65
19. 04-19 13:18:56.731: I/Unity(10492):  #3 0x9ecf9602 (libunity.so) DebugLogHandler_CUSTOM_Internal_Log(LogType, LogOption, ScriptingBackendNativeStringPtrOpaque*, ScriptingBackendNativeObjectPtrOpaque*) 0xb5
20. 04-19 13:18:56.731: I/Unity(10492):
21. 04-19 13:18:56.731: I/Unity(10492): (Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 35)
22. 04-19 13:18:56.771: I/Unity(10492): LoadWindows
23. 04-19 13:18:56.771: I/Unity(10492):  #0 0x9e76bd92 (libunity.so) GetStacktrace(int) 0x25
24. 04-19 13:18:56.771: I/Unity(10492):  #1 0x9f196244 (libunity.so) DebugStringToFile(DebugStringToFileData const&) 0x187
25. 04-19 13:18:56.771: I/Unity(10492):  #2 0x9ecf96b2 (libunity.so) DebugLogHandler::Internal_Log(LogType, LogOption, core::basic_string<char, core::StringStorageDefault<char> >, Object*) 0x65
26. 04-19 13:18:56.771: I/Unity(10492):  #3 0x9ecf9602 (libunity.so) DebugLogHandler_CUSTOM_Internal_Log(LogType, LogOption, ScriptingBackendNativeStringPtrOpaque*, ScriptingBackendNativeObjectPtrOpaque*) 0xb5
27. 04-19 13:18:56.771: I/Unity(10492):
28. 04-19 13:18:56.771: I/Unity(10492): (Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 35)
29. 04-19 13:18:58.111: I/Unity(10492): ArrangeWindowsPositions
30. 04-19 13:18:58.111: I/Unity(10492):  #0 0x9e76bd92 (libunity.so) GetStacktrace(int) 0x25
31. 04-19 13:18:58.111: I/Unity(10492):  #1 0x9f196244 (libunity.so) DebugStringToFile(DebugStringToFileData const&) 0x187
32. 04-19 13:18:58.111: I/Unity(10492):  #2 0x9ecf96b2 (libunity.so) DebugLogHandler::Internal_Log(LogType, LogOption, core::basic_string<char, core::StringStorageDefault<char> >, Object*) 0x65
33. 04-19 13:18:58.111: I/Unity(10492):  #3 0x9ecf9602 (libunity.so) DebugLogHandler_CUSTOM_Internal_Log(LogType, LogOption, ScriptingBackendNativeStringPtrOpaque*, ScriptingBackendNativeObjectPtrOpaque*) 0xb5
34. 04-19 13:18:58.111: I/Unity(10492):
35. 04-19 13:18:58.111: I/Unity(10492): (Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 35)
36. 04-19 13:18:58.471: D/Unity(10492): Uploading Crash Report
37. 04-19 13:18:58.471: E/Unity(10492): AssertionException: Assertion failure. Value was False
38. 04-19 13:18:58.471: E/Unity(10492): Expected: True
39. 04-19 13:18:58.471: E/Unity(10492): Chunk buffer must be 16 byte aligned
40. 04-19 13:18:58.471: E/Unity(10492):   at UnityEngine.Assertions.Assert.Fail (System.String message, System.String userMessage) [0x0003c] in /Users/builduser/buildslave/unity/build/Runtime/Export/Assertions/Assert/AssertBase.cs:29
41. 04-19 13:18:58.471: E/Unity(10492):   at UnityEngine.Assertions.Assert.IsTrue (System.Boolean condition, System.String message) [0x0000e] in /Users/builduser/buildslave/unity/build/Runtime/Export/Assertions/Assert/AssertBool.cs:20
42. 04-19 13:18:58.471: E/Unity(10492):   at Unity.Assertions.Assert.IsTrue (System.Boolean condition, System.String message) [0x00008] in C:\Repos\awars\Library\PackageCache\com.unity.entities@0.0.12-preview.29\Unity.Entities\Stubs\Unity.Assertions\Assert.cs:24
43. 04-19 13:18:58.471: E/Unity(10492):   at Unity.Entities.ArchetypeManager..ctor (Unity.Entities.SharedComponentDataManager sharedComponentManager, Unity.Entities.EntityDataManager* entityDataManager, Unity.Entities.EntityGroupManager groupManager) [0x00092] in C:\Repos\awars\Library\PackageCache\com.unity.entities@0.0.12-preview.29\Unit
44. 04-19 13:18:58.976: E/Unity(10492): AssertionException: Assertion failure. Value was False
45. 04-19 13:18:58.976: E/Unity(10492): Expected: True
46. 04-19 13:18:58.976: E/Unity(10492): Chunk buffer must be 16 byte aligned
47. 04-19 13:18:58.976: E/Unity(10492):   at UnityEngine.Assertions.Assert.Fail (System.String message, System.String userMessage) [0x0003c] in /Users/builduser/buildslave/unity/build/Runtime/Export/Assertions/Assert/AssertBase.cs:29
48. 04-19 13:18:58.976: E/Unity(10492):   at UnityEngine.Assertions.Assert.IsTrue (System.Boolean condition, System.String message) [0x0000e] in /Users/builduser/buildslave/unity/build/Runtime/Export/Assertions/Assert/AssertBool.cs:20
49. 04-19 13:18:58.976: E/Unity(10492):   at Unity.Assertions.Assert.IsTrue (System.Boolean condition, System.String message) [0x00008] in C:\Repos\awars\Library\PackageCache\com.unity.entities@0.0.12-preview.29\Unity.Entities\Stubs\Unity.Assertions\Assert.cs:24
50. 04-19 13:18:58.976: E/Unity(10492):   at Unity.Entities.ArchetypeManager..ctor (Unity.Entities.SharedComponentDataManager sharedComponentManager, Unity.Entities.EntityDataManager* entityDataManager, Unity.Entities.EntityGroupManager groupManager) [0x00092] in C:\Repos\awars\Library\PackageCache\com.unity.entities@0.0.12-preview.29\Unit
51. 04-19 13:18:59.001: E/Unity(10492): AssertionException: Assertion failure. Value was False
52. 04-19 13:18:59.001: E/Unity(10492): Expected: True
53. 04-19 13:18:59.001: E/Unity(10492): Chunk buffer must be 16 byte aligned
54. 04-19 13:18:59.001: E/Unity(10492):   at UnityEngine.Assertions.Assert.Fail (System.String message, System.String userMessage) [0x0003c] in /Users/builduser/buildslave/unity/build/Runtime/Export/Assertions/Assert/AssertBase.cs:29
55. 04-19 13:18:59.001: E/Unity(10492):   at UnityEngine.Assertions.Assert.IsTrue (System.Boolean condition, System.String message) [0x0000e] in /Users/builduser/buildslave/unity/build/Runtime/Export/Assertions/Assert/AssertBool.cs:20
56. 04-19 13:18:59.001: E/Unity(10492):   at Unity.Assertions.Assert.IsTrue (System.Boolean condition, System.String message) [0x00008] in C:\Repos\awars\Library\PackageCache\com.unity.entities@0.0.12-preview.29\Unity.Entities\Stubs\Unity.Assertions\Assert.cs:24
57. 04-19 13:18:59.001: E/Unity(10492):   at Unity.Entities.ArchetypeManager..ctor (Unity.Entities.SharedComponentDataManager sharedComponentManager, Unity.Entities.EntityDataManager* entityDataManager, Unity.Entities.EntityGroupManager groupManager) [0x00092] in C:\Repos\awars\Library\PackageCache\com.unity.entities@0.0.12-preview.29\Unit
58. 04-19 13:18:59.046: E/Unity(10492): AssertionException: Assertion failure. Value was False
59. 04-19 13:18:59.046: E/Unity(10492): Expected: True
60. 04-19 13:18:59.046: E/Unity(10492): Chunk buffer must be 16 byte aligned
61. 04-19 13:18:59.046: E/Unity(10492):   at UnityEngine.Assertions.Assert.Fail (System.String message, System.String userMessage) [0x0003c] in /Users/builduser/buildslave/unity/build/Runtime/Export/Assertions/Assert/AssertBase.cs:29
62. 04-19 13:18:59.046: E/Unity(10492):   at UnityEngine.Assertions.Assert.IsTrue (System.Boolean condition, System.String message) [0x0000e] in /Users/builduser/buildslave/unity/build/Runtime/Export/Assertions/Assert/AssertBool.cs:20
63. 04-19 13:18:59.046: E/Unity(10492):   at Unity.Assertions.Assert.IsTrue (System.Boolean condition, System.String message) [0x00008] in C:\Repos\awars\Library\PackageCache\com.unity.entities@0.0.12-preview.29\Unity.Entities\Stubs\Unity.Assertions\Assert.cs:24
64. 04-19 13:18:59.046: E/Unity(10492):   at Unity.Entities.ArchetypeManager..ctor (Unity.Entities.SharedComponentDataManager sharedComponentManager, Unity.Entities.EntityDataManager* entityDataManager, Unity.Entities.EntityGroupManager groupManager) [0x00092] in C:\Repos\awars\Library\PackageCache\com.unity.entities@0.0.12-preview.29\Unit
65. 04-19 13:18:59.061: I/Unity(10492): Try Open Window PreGame
66. 04-19 13:18:59.061: I/Unity(10492):  #0 0x9e76bd92 (libunity.so) GetStacktrace(int) 0x25
67. 04-19 13:18:59.061: I/Unity(10492):  #1 0x9f196244 (libunity.so) DebugStringToFile(DebugStringToFileData const&) 0x187
68. 04-19 13:18:59.061: I/Unity(10492):  #2 0x9ecf96b2 (libunity.so) DebugLogHandler::Internal_Log(LogType, LogOption, core::basic_string<char, core::StringStorageDefault<char> >, Object*) 0x65
69. 04-19 13:18:59.061: I/Unity(10492):  #3 0x9ecf9602 (libunity.so) DebugLogHandler_CUSTOM_Internal_Log(LogType, LogOption, ScriptingBackendNativeStringPtrOpaque*, ScriptingBackendNativeObjectPtrOpaque*) 0xb5
70. 04-19 13:18:59.061: I/Unity(10492):
71. 04-19 13:18:59.061: I/Unity(10492): (Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 35)
72. 04-19 13:18:59.076: I/Unity(10492): PostOpen PreGame
73. 04-19 13:18:59.076: I/Unity(10492):  #0 0x9e76bd92 (libunity.so) GetStacktrace(int) 0x25
74. 04-19 13:18:59.076: I/Unity(10492):  #1 0x9f196244 (libunity.so) DebugStringToFile(DebugStringToFileData const&) 0x187
75. 04-19 13:18:59.076: I/Unity(10492):  #2 0x9ecf96b2 (libunity.so) DebugLogHandler::Internal_Log(LogType, LogOption, core::basic_string<char, core::StringStorageDefault<char> >, Object*) 0x65
76. 04-19 13:18:59.076: I/Unity(10492):  #3 0x9ecf9602 (libunity.so) DebugLogHandler_CUSTOM_Internal_Log(LogType, LogOption, ScriptingBackendNativeStringPtrOpaque*, ScriptingBackendNativeObjectPtrOpaque*) 0xb5
77. 04-19 13:18:59.076: I/Unity(10492):
78. 04-19 13:18:59.076: I/Unity(10492): (Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 35)
79. 04-19 13:18:59.111: D/Unity(10492): Unloading 26 Unused Serialized files (Serialized files now loaded: 0)
80. 04-19 13:18:59.151: D/Unity(10492): System memory in use before: 80.3 MB.
81. 04-19 13:18:59.401: D/Unity(10492): System memory in use after: 80.5 MB.
82. 04-19 13:18:59.401: D/Unity(10492): Unloading 3 unused Assets to reduce memory usage. Loaded Objects now: 16405.
83. 04-19 13:18:59.401: D/Unity(10492): Total: 253.669500 ms (FindLiveObjects: 3.916667 ms CreateObjectMapping: 1.399666 ms MarkObjects: 248.218667 ms  DeleteObjects: 0.123834 ms)
84. 04-19 13:18:59.441: D/Unity(10492): Sensor :        Accelerometer ( 1) ; 0.001197 / 0.00s ; ICM20610 Acceleration Sensor / Invensense
85. 04-19 13:18:59.446: D/Unity(10492): Choreographer available: Enabling VSYNC timing
86. 04-19 13:18:59.676: D/Unity(10492): Uploading Crash Report
87. 04-19 13:18:59.676: E/Unity(10492): AssertionException: Assertion failure. Value was False
88. 04-19 13:18:59.676: E/Unity(10492): Expected: True
89. 04-19 13:18:59.676: E/Unity(10492): Chunk buffer must be 16 byte aligned
90. 04-19 13:18:59.676: E/Unity(10492):   at UnityEngine.Assertions.Assert.Fail (System.String message, System.String userMessage) [0x0003c] in /Users/builduser/buildslave/unity/build/Runtime/Export/Assertions/Assert/AssertBase.cs:29
91. 04-19 13:18:59.676: E/Unity(10492):   at UnityEngine.Assertions.Assert.IsTrue (System.Boolean condition, System.String message) [0x0000e] in /Users/builduser/buildslave/unity/build/Runtime/Export/Assertions/Assert/AssertBool.cs:20
92. 04-19 13:18:59.676: E/Unity(10492):   at Unity.Assertions.Assert.IsTrue (System.Boolean condition, System.String message) [0x00008] in C:\Repos\awars\Library\PackageCache\com.unity.entities@0.0.12-preview.29\Unity.Entities\Stubs\Unity.Assertions\Assert.cs:24
93. 04-19 13:18:59.676: E/Unity(10492):   at Unity.Entities.ArchetypeManager..ctor (Unity.Entities.SharedComponentDataManager sharedComponentManager, Unity.Entities.EntityDataManager* entityDataManager, Unity.Entities.EntityGroupManager groupManager) [0x00092] in C:\Repos\awars\Library\PackageCache\com.unity.entities@0.0.12-preview.29\Unit
94. 04-19 13:18:59.696: D/Unity(10492): Uploading Crash Report
95. 04-19 13:18:59.696: E/Unity(10492): AssertionException: Assertion failure. Value was False
96. 04-19 13:18:59.696: E/Unity(10492): Expected: True
97. 04-19 13:18:59.696: E/Unity(10492): Chunk buffer must be 16 byte aligned
98. 04-19 13:18:59.696: E/Unity(10492):   at UnityEngine.Assertions.Assert.Fail (System.String message, System.String userMessage) [0x0003c] in /Users/builduser/buildslave/unity/build/Runtime/Export/Assertions/Assert/AssertBase.cs:29
99. 04-19 13:18:59.696: E/Unity(10492):   at UnityEngine.Assertions.Assert.IsTrue (System.Boolean condition, System.String message) [0x0000e] in /Users/builduser/buildslave/unity/build/Runtime/Export/Assertions/Assert/AssertBool.cs:20
100. 04-19 13:18:59.696: E/Unity(10492):   at Unity.Assertions.Assert.IsTrue (System.Boolean condition, System.String message) [0x00008] in C:\Repos\awars\Library\PackageCache\com.unity.entities@0.0.12-preview.29\Unity.Entities\Stubs\Unity.Assertions\Assert.cs:24
101. 04-19 13:18:59.696: E/Unity(10492):   at Unity.Entities.ArchetypeManager..ctor (Unity.Entities.SharedComponentDataManager sharedComponentManager, Unity.Entities.EntityDataManager* entityDataManager, Unity.Entities.EntityGroupManager groupManager) [0x00092] in C:\Repos\awars\Library\PackageCache\com.unity.entities@0.0.12-preview.29\Unit
102. 04-19 13:19:29.861: I/Unity(10492): onPause
103. 04-19 13:19:29.871: D/Unity(10492): Uploading Crash Report
104.  

 

I had the same problem and it was cause by having a bool inside a IComponentData. Replaced it with a int and everything was fine. Only a workarround thought.

 

I think we dont have components with bool. In edtor all work fine.
Problem only on Android dev builds tested on 6 devices.

 

What version of entities are you on?
I think there's possibly a few causes for this.

Same problem here refers to missing link.xml

In my case, this was due to misaligned offsets in the chunk struct on Android but that has been fixed in latest entities by using explicit layout.

 

Link to link.xml is broken. May you provide this file?
I have this problem on 28,29,30

 

Having the same issue here, even after adding the link-file.

Code (CSharp):

1. Assertion failed: Chunk buffer must be 16 byte aligned
2. Assertion failure. Value was False
3. Expected: True
4. UnityEngine.Assertions.Assert:Fail(String, String)
5. Unity.Entities.ArchetypeManager:.ctor(SharedComponentDataManager, EntityDataManager*, EntityGroupManager)
6. Unity.Entities.EntityManager:OnCreateManager()

My link-File:

Code (CSharp):

1. <linker>
2.         <assembly fullname="Unity.Entities" preserve="all"/>
3.         <assembly fullname="Unity.Collections" preserve="all"/>
4.         <assembly fullname="Unity.Burst" preserve="all"/>
5.         <assembly fullname="Unity.Entities.Hybrid" preserve="all"/>
6.         <assembly fullname="Unity.Transforms" preserve="all"/>
7.         <assembly fullname="Unity.Transforms.Hybrid" preserve="all"/>
8.         <assembly fullname="Unity.Rendering.Hybrid" preserve="all"/>
9.         <assembly fullname="Unity.Scenes.Hybrid" preserve="all"/>
10. </linker>

 

This assertion error is from versions prior to .30 where it was possible for Buffer to be non aligned with 16 bytes.
Try updating to version .30. The Buffer there is fixed at offset 48 and byte alignment is fixed at 16 bytes so I'm not even sure how this assertion can be hit in latest version.

I don't know what's meant to go in the link.xml file as I haven't used it, just that it solved this same issue for another poster.
Try copying one directly from the Unity samples.

 

version 30 is not available for Unity 2018, and updating to 2019 (i.e. re-writing a S***ton of code) isn't really an option for me, especially as I'm looking to get 2018 LTS-support when the app launches.

The link.xml just prevents stripping of specific code (see also the issue I was having here: https://forum.unity.com/threads/apps-crashing-on-boot-when-built-with-il2cpp.664360/ ).
ArchetypeManager is not being stripped (as the Constructor is clearly being executed.)

The assertion that's failing is in this code (inside the ArchetypeManager.ctor()):

Code (CSharp):

1. #if UNITY_ASSERTIONS
2.             // Buffer should be 16 byte aligned to ensure component data layout itself can gurantee being aligned
3.             var offset = UnsafeUtility.GetFieldOffset(typeof(Chunk).GetField("Buffer"));
4.             Assert.IsTrue(offset % 16 == 0, "Chunk buffer must be 16 byte aligned");
5. #endif

I'm going to check if Chunk is being stripped somehow next..

Edit: Chunk is in the same file as the ArcheTypeManager, so it's not being stripped either.

 

Is this just temporary or is ecs not going to be supported in 2018? If so then at some point you're going to have to upgrade anyway. I imagine ecs is going to go through many more changes before coming out of preview.

Yes, I don't know how this stripping happens and how this particular assertion could be hit if Chunk wasn't part of the build.
If you look at the Chunk struct, you'll see a UNITY_32 define which determines the offset of Buffer and that is what was causing the assertion error in my case as that define wasn't being set in my Android build. I had to manually set that define but version .30 has since fixed that.
Perhaps wherever that define is set is getting stripped from the build.

Have you tried building with mono instead and see if that works? It's my limited understanding that link.xml is only needed for IL2CPP cos stripping doesn't occur with mono.

 

Yeah, mono is running fine. It's definitely the bytecode stripping that's the issue..
However, it's probably a much larger issue, as straight up removing the assertion code still doesn't get my app to boot (fully), but just removes the error that it's logging.

I'm gonna try to make a build with pretty much every assemblydef etc. that I have in my project inside of my link.xml (thereby effectively disabling stripping), and/or see how much of it I can replicate outside of my own project, and make a bugreport (without any of my company's IP).


Edit: Not sure if .30 is explicitely coming to 2018 at some point, but I'm pretty sure they stated that they wanted to have at least a base version of ECS working in 2018.3 onward (by backporting from 2019).
2019 LTS is still a ways off though, so not really an option for companies publishing games built on Unity, and IL2CPP is the only available backend for IOS, so Mono isn't an option there either.

 

Here is the link.xml file from the .29 samples

 

Unfortunately even using that link.xml AND including ALL assembly defs in my project into it still doesn't seem to fix the issue..
Guess I'll have to talk my boss into switching to 2019.1 on Tuesday..

 

One other thing you could try is see if you can deploy any of the ecs sample projects to Android.
If they work, which they did for the other poster with this same problem, it might help you pinpoint what's different between the sample and your project. Maybe something in the project or player settings.

 

This work for me (ecs .30)

 

Update: Switching to Unity 2019.1 with Entities 0.30 fixed the issue for me wrt IL2CPP (as far as I can tell. Haven't run full tests yet, but at least it's running on Android w/ IL2CPP)

 

I ended up commenting out the assert that was failing. For some reason, it was causing the app the crash, where without the assert the game worked fine. (which is weird). You can also try building your game in NOT development mode and it should strip out the asserts.

ArchetypeManager.cs in the packages folder. line 585

Code (CSharp):

1. Assert.IsTrue(offset % 16 == 0, "Chunk buffer must be 16 byte aligned");

 

Errrrr that doesn’t seem like a good idea. The assert is there for a reason. There’s a good chance that burst may optimise certain code to use some SIMD. Certain instructions require data be aligned on larger than regular boundaries, i.e. 16 bytes. Badly aligned data means undefined behaviour which can cause all sorts of very difficult to debug issues such as seemingly random segmentation faults.

That assert is crashing the app because that check is failing. Commenting this out may work fine on your device but cause terrible behaviour for who knows whatever other devices are out there.