iOS NSInternalInconsistencyException crash in UnityAppController+Rendering.mm line 248

Crash #2

My game is live, and a small % of players are experiencing crashes. I cannot reproduce any of them, so all I have to go on are traces reported via Crashlytics. This is one is one of the most frequent crashes players have. Any help is deeply appreciated!

Only happens on iOS
Crashes with NSInternalInconsistencyException
Crashes in: UnityAppController+Rendering.mm line 248
Built with IL2CPP

Code (CSharp):

1.  
2. Fatal Exception: NSInternalInconsistencyException
3. 0  CoreFoundation                 0x190c4d1b8 __exceptionPreprocess
4. 1  libobjc.A.dylib                0x18f68455c objc_exception_throw
5. 2  CoreFoundation                 0x190c4d08c +[NSException raise:format:]
6. 3  Foundation                     0x191705098 -[NSAssertionHandler handleFailureInFunction:file:lineNumber:description:]
7. 4  UIKit                          0x196d85a88 _prepareForCAFlush
8. 5  UIKit                          0x196da6250 _beforeCACommitHandler
9. 6  CoreFoundation                 0x190bfa0c0 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__
10. 7  CoreFoundation                 0x190bf7cf0 __CFRunLoopDoObservers
11. 8  CoreFoundation                 0x190b262d8 CFRunLoopRunSpecific
12. 9  matchdragons                   0x10001407c UnityRepaint (UnityAppController+Rendering.mm:248)
13. 10 matchdragons                   0x100021334 -[UnityAppController applicationWillResignActive:] (UnityAppController.mm:309)
14. 11 UIKit                          0x196b6a43c -[UIApplication _deactivateForReason:notify:]
15. 12 UIKit                          0x196d88398 __61-[UIApplication _sceneSettingsPreLifecycleEventDiffInspector]_block_invoke
16. 13 FrontBoardServices             0x19280c620 __52-[FBSSettingsDiffInspector inspectDiff:withContext:]_block_invoke.27
17. 14 Foundation                     0x191717024 __NSIndexSetEnumerate
18. 15 BaseBoard                      0x192786f68 -[BSSettingsDiff inspectChangesWithBlock:]
19. 16 FrontBoardServices             0x1928067b8 -[FBSSettingsDiff inspectOtherChangesWithBlock:]
20. 17 FrontBoardServices             0x19280c3fc -[FBSSettingsDiffInspector inspectDiff:withContext:]
21. 18 UIKit                          0x196d89800 __70-[UIApplication scene:didUpdateWithDiff:transitionContext:completion:]_block_invoke
22. 19 UIKit                          0x196d894a4 -[UIApplication scene:didUpdateWithDiff:transitionContext:completion:]
23. 20 UIKit                          0x1970b553c -[UIApplicationSceneClientAgent scene:handleEvent:withCompletion:]
24. 21 FrontBoardServices             0x1927f5dd4 __80-[FBSSceneImpl updater:didUpdateSettings:withDiff:transitionContext:completion:]_block_invoke.376
25. 22 FrontBoardServices             0x19282392c __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__
26. 23 FrontBoardServices             0x192823798 -[FBSSerialQueue _performNext]
27. 24 FrontBoardServices             0x1927fc058 -[FBSWorkspace synchronizeSystemAnimationFencesWithCleanUpBlock:]
28. 25 UIKit                          0x196d85684 -[UIApplication _synchronizeSystemAnimationFencesWithSpinCleanUpBlock:]
29. 26 UIKit                          0x196dda664 __realPreCommitHandler_block_invoke
30. 27 QuartzCore                     0x193f47e10 CA::Transaction::Fence::run_callbacks() const
31. 28 QuartzCore                     0x193f1f4c4 CA::Context::commit_transaction(CA::Transaction*)
32. 29 QuartzCore                     0x193f46a68 CA::Transaction::commit()
33. 30 QuartzCore                     0x193f47488 CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*)
34. 31 CoreFoundation                 0x190bfa0c0 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__
35. 32 CoreFoundation                 0x190bf7cf0 __CFRunLoopDoObservers
36. 33 CoreFoundation                 0x190b262d8 CFRunLoopRunSpecific
37. 34 matchdragons                   0x10001407c UnityRepaint (UnityAppController+Rendering.mm:248)
38. 35 matchdragons                   0x100013df0 -[UnityAppController(Rendering) repaintDisplayLink] (UnityAppController+Rendering.mm:54)
39. 36 QuartzCore                     0x193ea2f24 CA::Display::DisplayLinkItem::dispatch(unsigned long long)
40. 37 QuartzCore                     0x193ea2dd0 CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long)
41. 38 IOKit                          0x190eba094 IODispatchCalloutFromCFMessage
42. 39 CoreFoundation                 0x190be2e50 __CFMachPortPerform
43. 40 CoreFoundation                 0x190bfb218 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__
44. 41 CoreFoundation                 0x190bfa9cc __CFRunLoopDoSource1
45. 42 CoreFoundation                 0x190bf84b0 __CFRunLoopRun
46. 43 CoreFoundation                 0x190b262b8 CFRunLoopRunSpecific
47. 44 GraphicsServices               0x1925da198 GSEventRunModal
48. 45 UIKit                          0x196b6d7fc -[UIApplication _run]
49. 46 UIKit                          0x196b68534 UIApplicationMain
50. 47 matchdragons                   0x10000e07c main (main.mm:32)
51. 48 libdispatch.dylib              0x18fb095b8 (Missing)
52.  

 

Hi,

Seems to be the same issue as I posted last week as well, https://forum.unity3d.com/threads/m...lt-with-unity-5-4-3p2-p4.447530/#post-2894995

Edit: after some discussions with the QA team it seems the bug is the one reported here, https://issuetracker.unity3d.com/is...sometimes-results-in-corrupted-view-on-ios-10 . So @Peacewise you might want to check and see if that's the case for the bug reports you're getting too.

 

@Peacewise Did you get a response for that problem? I am seeing the same issue happening in our live build right now. We are on Unity 5.4.4p2.

Code (CSharp):

1.  

 

I did two things that have stopped this from occurring for me. I don't know whether it was one or both:

1. I updated to Unity 5.3.7p2
2. I also removed the code I had which was manually changing orientations. I didn't need that code any longer -- I was changing orientation temporarily on startup because Unity hadn't correctly been detecting orientation, and my splash was getting squashed into portrait, but apparently that bug was fixed a while back.

Either way, I'm not seeing any more reports of these crashes. Hope that helps some, best of luck!