Unreal Engine Issues
Unreal Engine Issues
[AI] BehaviorTreeComponent fails to run a new tree if the current tree ends with a latent abort
UE - AI - BehaviorTree - Sep 8, 2023If a BT ends with a latent abort with another BT asset pending initialization, the BehaviorTree component will stop the tree that was aborted, but it does not start the new tree. You can check with ...
Blueprint "Set by ref" (UK2Node_VariableSetRef) does not mark properties dirty for push replication
UE - Framework - Blueprint - Sep 7, 2023When using Push Replication with blueprints, UK2Node_VariableSetRef nodes do not mark a property as dirty and so the variable is not replicated. ...
Error when merging meshes with sections
UE - World Creation - Worldbuilding Tools - Merge Actor - Sep 6, 2023Note that the issue does not happen if the two materials have different colors. Note also that the issue happens if one of the meshes to merge has 2 sections with the same material assigned ...
Client cannot find LevelStreaming in editor mode
UE - World Creation - Worldbuilding Tools - Sep 6, 2023From licensee: When we run MainMap (NM-Standalone) and then open GameMap to play (options - listen). When the client joins the server, it won't be able to find the LevelStreaming in GameMap (see - ...
Volumetric lightmap + stationary light has missing shadows
UE - Rendering Architecture - Sep 5, 2023Primitives with the "Lightmap Type" set to "Force Volumetric" are not shadowed correctly. Issue dates back to at least 4.27.2. As a workaround, making FLightCacheInterface::GetStaticInteraction al ...
Editor/Details Panel allows duplicate keys in TMap/TSet UPROPERTY()
UE - Editor - Workflow Systems - Sep 5, 2023When edited through the Details Panel in the Editor, TMap and TSet properties should not allow duplicate keys. When those keys are USTRUCTs with the “WithIdenticalViaEquality” trait, this should be ...
UHT doesn't warn that a class/structure size is larger than 65535
UE - Foundation - Cpp Tools - UnrealHeaderTool - Sep 1, 2023Static Mesh Scene Actor Flipped Normals
UE - Rendering Architecture - Aug 31, 2023Static meshes can have normals flipped when the actor they are attached to has one component of its scale inverted. ...
Crash when adding foliage instances to unloaded IFA
UE - World Creation - Worldbuilding Tools - Foliage - Aug 31, 2023Ran into a crash when trying to programmatically add foliage to a large WP level with some unloaded IFAs. ...
Inconsistent behavior with Register State Branches
UE - Editor - Workflow Systems - Aug 31, 2023ISourceControlProvider::RegisterStateBranches(...) doesn't reliably warn on conflicts ISourceControlProvider::RegisterStateBranches(...), specifically FPerforceSourceControlProvider, is supposed to ...