Uncaught RuntimeError: memory access out of bounds (WebGL on Unity Play)

Hi, I am trying to get my Unity LEGO microgame uploaded to play.unity.com.
I can build to WebGL and it uploads the game, but when I try to play it in my browser (chrome) it gives the following error:

'An error occured running the Unity content on this page. See your browser Javascript console for more info. the error was: Uncaught RuntimeError: memory access out of bounds.'

I thought maybe the game was too heavy so I tried stripping the whole game down until there was barely anything left, but it still gives the same error when playing the uploaded build.

The chrome console shows these errors:

Code (JavaScript):

1. Uncaught RuntimeError: memory access out of bounds
2.     at <anonymous>:wasm-function[39464]:0xe48aa0
3.     at <anonymous>:wasm-function[39463]:0xe48a33
4.     at <anonymous>:wasm-function[39462]:0xe489c9
5.     at <anonymous>:wasm-function[49594]:0x10a110c
6.     at <anonymous>:wasm-function[49601]:0x10a1f8f
7.     at <anonymous>:wasm-function[49599]:0x10a1a95
8.     at <anonymous>:wasm-function[49598]:0x10a181f
9.     at <anonymous>:wasm-function[25339]:0xb97bac
10.     at dynCall_iiiii (<anonymous>:wasm-function[52471]:0x111f01b)
11.     at Object.dynCall_iiiii (blob:https://play.unity3dusercontent.com/08f085a7-7fd5-42f4-a591-d067454a8d6a:8:463265)
12.     at invoke_iiiii (blob:https://play.unity3dusercontent.com/08f085a7-7fd5-42f4-a591-d067454a8d6a:8:331727)
13.     at <anonymous>:wasm-function[50596]:0x10c8f11
14.     at <anonymous>:wasm-function[50050]:0x10b0ed8
15.     at <anonymous>:wasm-function[4469]:0x1b7b8d
16.     at <anonymous>:wasm-function[4467]:0x1b7865
17.     at <anonymous>:wasm-function[8137]:0x2f5ff6
18.     at <anonymous>:wasm-function[8134]:0x2f4e18
19.     at <anonymous>:wasm-function[10603]:0x40081f
20.     at <anonymous>:wasm-function[8402]:0x3162cc
21.     at <anonymous>:wasm-function[10989]:0x42cea0
22.     at <anonymous>:wasm-function[10703]:0x40a3f0
23.     at <anonymous>:wasm-function[10703]:0x40a405
24.     at <anonymous>:wasm-function[10698]:0x409f0f
25.     at <anonymous>:wasm-function[10691]:0x408112
26.     at dynCall_v (<anonymous>:wasm-function[52485]:0x111f24d)
27.     at Object.dynCall_v (blob:https://play.unity3dusercontent.com/08f085a7-7fd5-42f4-a591-d067454a8d6a:8:471234)
28.     at browserIterationFunc (blob:https://play.unity3dusercontent.com/08f085a7-7fd5-42f4-a591-d067454a8d6a:8:166325)
29.     at Object.runIter (blob:https://play.unity3dusercontent.com/08f085a7-7fd5-42f4-a591-d067454a8d6a:8:169386)
30.     at Browser_mainLoop_runner (blob:https://play.unity3dusercontent.com/08f085a7-7fd5-42f4-a591-d067454a8d6a:8:167848)

 

Did you manage to sort this? I'm not seeing this but I do get an array index out of bounds error loading my scene with some sizeable (but not ridiculous) studio built & imported models.

I did notice that the files generated didnt shrink when I took models out of my scene. Part of the build process popup goes through importing files and I noticed it was importing ones I didn't use in any of my scenes so I think that's the prefabs being included (so my building wasn't in the scene but was a prefab as that's my pattern - import and turn into a prefab for creating multiple copies - and it was possibly still included in the build - could be that in a normal game, the builder wouldn't know that some code didnt instantiate the prefab so it has to include it or something).

 

I currently have the same problem. with "Uncaught RuntimeError: memory access out of bounds".
the scene loads in editor and the scene load in a exe build, but in webgl i get that error message.

I've tried removing all custom scripts but that didn't fix the issue.

I tried making all the imported objects static. didn't fix the issue.

I tried removing all objects from my scene and that did allow the scene to load, but isn't really a usable fix.

 

I was able to fix this issue,

I disabled the line :
meshCombiner.GridExtents = optimizationBounds.size;

found in the BrickMeshCombiner script, which is on the GameManager object.