When cooking the DDC key for a material layers parameter set may become invalid which causes issues reading/writing to the global material shader map and can lead to a crash. See original UDN post for a detailed explanation.
Create a material using material layers feature.
Cook package.
Cook task may crash.
How does TextureRenderTarget2D get TArray<uint8> type data?
Why does the REMOVE method of map container remove elements have memory leaks?
What is the difference between Camera and CineCamera?
How do I set a material as a post-processing material?
How to delete some elements correctly when deleting an array loop?
UMG RichText not appear image when packaged
What is the cause of the packaging error falling back to 'GameUserSettings' in ue5?
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-64850 in the post.
| 0 |
| Component | UE - Graphics Features |
|---|---|
| Affects Versions | 4.19, 4.20, 4.21 |
| Target Fix | 4.22 |
| Fix Commit | 4734852 |
|---|
| Created | Oct 5, 2018 |
|---|---|
| Resolved | Jan 16, 2019 |
| Updated | Aug 9, 2019 |