4.23Editor crashes after lightbuild complte

Development Rendering
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1

I copied a previous project to a 4.23 version so I could try the HDRI backdrop plugin. Also I made landscape here.

When I build the project, (also in building only) UE complites the build freezes and then crashes.

It tells me this:
Assertion failed: UniformExpressionCache.bUpToDate && UniformExpressionCache.UniformBuffer [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Renderer/Private/ShaderBaseClasses.cpp] [Line: 383]

help?

2

There was still a skylight in the scene. After deleting this the issue was solved.

The hdri backdrop skylight is dynamic by default. It is possible to change the mobility settings of this.