Substrate material uses "SetMaterialAttributes" node causing crash

hylotropy · August 14, 2024, 4:04am

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Stability

Summary

Substrate material uses “SetMaterialAttributes” node causing crash

Steps to Reproduce

Use the SetMaterialAttributes node in a material function MF_01 and connect it to the Output Result.
Then use MF_01 in another material function MF_02. Then connect MF_01 to the Output Result in MF_02, click save, and ue5.4.3 will crash immediately.
This problem should have existed for a long time, but it has not been fixed with every update.

Expected Result

If the project disables Substrate, everything will be normal.

Observed Result

Assertion failed: Index >= 0 && Index < CurrentScopeChunks->Num() [File:D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialTranslator.cpp] [Line: 3012]
Index -1/47, Platform=49

0x00007ff88ec5fe8e UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ec5faa1 UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ecab256 UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ed83a8c UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ec21435 UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ef15157 UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ef1561b UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88eced0c7 UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ef1523f UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ececc6c UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ec317a1 UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ecb212c UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ef8e1ae UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ef0699b UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88eef10d2 UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ef3386b UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ef0cd3f UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ece8663 UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ece82ec UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88ed1fc50 UnrealEditor-Engine.dll!UnknownFunction
0x00007ff89244c11c UnrealEditor-CoreUObject.dll!UnknownFunction
0x00007ff88edb7567 UnrealEditor-Engine.dll!UnknownFunction
0x00007ff88b448a65 UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ff88b023864 UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ff88b001f12 UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ff88b52af72 UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ff88b50ad57 UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ff88ad3e45f UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ff88ad3cbbc UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ff88ad7524c UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ff88ad75803 UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ff88b594a3f UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ff882ba8d4f UnrealEditor-MaterialEditor.dll!UnknownFunction
0x00007ff88b51da9b UnrealEditor-UnrealEd.dll!UnknownFunction
0x00007ff88cf3d0f5 UnrealEditor-Slate.dll!UnknownFunction
0x00007ff88cf3d271 UnrealEditor-Slate.dll!UnknownFunction
0x00007ff88d068ef5 UnrealEditor-Slate.dll!UnknownFunction
0x00007ff88d03c6aa UnrealEditor-Slate.dll!UnknownFunction
0x00007ff88d0da05c UnrealEditor-Slate.dll!UnknownFunction
0x00007ff88d0f8368 UnrealEditor-Slate.dll!UnknownFunction
0x00007ff88ce63975 UnrealEditor-Slate.dll!UnknownFunction
0x00007ff88cec1187 UnrealEditor-Slate.dll!UnknownFunction
0x00007ff88ceae8f1 UnrealEditor-Slate.dll!UnknownFunction
0x00007ff88cea1aa6 UnrealEditor-Slate.dll!UnknownFunction
0x00007ff89629d54f UnrealEditor-ApplicationCore.dll!UnknownFunction
0x00007ff896286f16 UnrealEditor-ApplicationCore.dll!UnknownFunction
0x00007ff89629ff93 UnrealEditor-ApplicationCore.dll!UnknownFunction
0x00007ff896280e51 UnrealEditor-ApplicationCore.dll!UnknownFunction
0x00007ff8b5aa5581 USER32.dll!UnknownFunction
0x00007ff8b5aa30cd USER32.dll!UnknownFunction
0x00007ff8962a0a96 UnrealEditor-ApplicationCore.dll!UnknownFunction
0x00007ff77f47780a UnrealEditor.exe!UnknownFunction
0x00007ff77f49e33c UnrealEditor.exe!UnknownFunction
0x00007ff77f49e42a UnrealEditor.exe!UnknownFunction
0x00007ff77f4a18a4 UnrealEditor.exe!UnknownFunction
0x00007ff77f4b70c4 UnrealEditor.exe!UnknownFunction
0x00007ff77f4ba37a UnrealEditor.exe!UnknownFunction
0x00007ff8b5941fd7 KERNEL32.DLL!UnknownFunction

Platform(s)

windows 11 24h2, ue5.4.3

SebHillaire · August 20, 2024, 2:24pm

Hello,
Thanks for the details. I have tried to reproduce but could not (our main branch for 5.5).

hylotropy · August 21, 2024, 5:09am

Did you enable the “Substrate materials (Experimental)” option in Project Settings when you reproduced it? It would be great if this bug is really fixed in 5.5

SebHillaire · August 21, 2024, 8:00am

Yes.
However I am not sure I am looking exactly at what you mention without more details/asset/images. Maybe put images of your materials and functions here to make sure.

hylotropy · August 21, 2024, 11:29am

No additional assets are required to trigger this error. Create a new empty 5.4 project and enable Substrate
, and then create the material function as shown in the screenshot. When you click the save button of MF_02, ue5.4 will crash immediately.

SebHillaire · August 22, 2024, 7:11am

Thanks.
So yes I checked and this is what I did. So seems like it is fixed