Description

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.

Steps to Reproduce

Create a material using material layers feature.

Cook package.

Cook task may crash.

Have Comments or More Details?

There's no existing public thread on this issue, so head over toAnswerHub just mention UE-64850 in the post.

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Fixed
ComponentRendering
Affects Versions4.194.204.21
Target Fix4.22
Fix Commit4734852
CreatedOct 5, 2018
ResolvedJan 16, 2019
UpdatedAug 9, 2019