Child nodes do not call PrepareForReplication unlike root nodes in Replication Graph

UE - Networking - Feb 3, 2022

Child nodes are by default not added to the PrepareForReplicationNodes array in order to prevent unnecessary calls to PrepareForReplication. However, this difference in behavior is not very apparent ...

Editor lighting components not displaying correctly with diffuse off with lumen enabled

UE - Graphics Features - Lumen - Feb 2, 2022

Licensee note: "I haven’t tested with Ray tracing. I currently have lumen enable and it’s occurring there." ...

EditInlineNew properties on components don't work if the component name has whitespace

UE - Framework - Blueprint Editor - Feb 1, 2022

EditInlineNew properties on components can't be properly set if the component name has whitespace in it. This appears to be a problem with resolving the property name in SPropertyEditorEditInline::O ...

Specific Blend Mode of Material on UMG render incorrectly when HDR is enabled

UE - Graphics Features - Jan 27, 2022

This issue occurs with the Additive and Alpha Holdout settings. ...

FScriptMapHelper::HasKey() and FScriptSetHelper::HasElement() fail on new keys with a substring of another key

UE - Editor - Workflow Systems - Jan 27, 2022

Duplicate key checking in maps and sets in the editor is done via calls to FScriptMapHelper::HasKey() and FScriptSetHelper::HasElement(), but this code is checking for object names which are subsets ...

Unnamespaced UnrealMathUtility.h macros clash with other headers

UE - CoreTech - Jan 25, 2022

Reported here: [Link Removed] > See this commit: > > https://github.com/EpicGames/UnrealEngine/commit/acd754e12dc9a7ffc7f173c8433a6bafc0262b51#diff-b18d4f9b879748fdacff2caa885b231e8c9e0b899d90d5d ...

UTextBlock::SetText doesn't work in global invalidation

UE - Editor - UI Systems - Slate - Jan 24, 2022

This happens on consoles running in 4k so DPIScale would be 2x. The character between lines is just a newline (Shift + Enter in the text field in editor), the text is set with SetText, possibly a f ...

C4D import, missing materials

UE - Editor - Content Pipeline - Datasmith - Importer - Jan 21, 2022

cf. https://forums.unrealengine.com/t/texture-problem-with-c4d-import-datasmith/272840 ...

Alembic Caches Not Working With Lumen

UE - Graphics Features - Lumen - Jan 20, 2022

It appears that Alembic caches do not influence Lumen's indirect lighting (except for shadowing). Alembic geometry caches should influence lighting in Lumen as any other geometry in a level. I hav ...