Unreal Engine Issues
Unreal Engine Issues
[CrashReport] Assertion failure in NameTypes.h after CookOnTheFly
UE - Foundation - Core - Apr 25, 2017This is a top crash occurring for users in the 4.14 and 4.15 releases. Unfortunately no user-descriptions of the issue have been provided, so information is limited. Despite a different callstack, ...
Reimporting Static Mesh LODs yields unexpected material assignments
Tools - May 24, 2018Reimporting an asset after making changes causes loss of saved LOD changes when editing a static mesh. Similar issue was logged and fixed for SkeletalMeshes but this issue is still occurring for ...
Non-nativized classes that implement a nativized interface class do not get interface methods called when invoked through a Blueprint function library.
UE - Gameplay - Blueprint - Jul 5, 2018UObjectBaseUtility::GetInterfaceAddress() fails due to an incorrect serialized value of the 'bImplementedByK2' property within the non-nativized class's Interfaces array on save. See support thread ...
HLOD visibility state isn't cleared when changing scene
UE - Graphics Features - Sep 25, 2018HLOD state is not cleared when moving to a scene without HLOD so primitives may read the state from the old scene and incorrectly cull objects. The safe fix is to clear the HLOD state maps when the ...
Calling TearOff then Destroy on an actor results in client actor also being destroyed
UE - Networking - Jan 14, 2021When calling TearOff followed immediately by Destroy, the channel will be closed with the reason that the actor was destroyed, so the actor will be destroyed on the client as well. In the UDN linke ...
Renaming a SkinnedMeshComponent onto a different owning actor will cause issues with FAnimUpdateRateManager
UE - Anim - Runtime - Aug 12, 2021As mentioned in the UDN - the user tried to rename an SMC to a different actor, which leaves the URO manager left with an incorrect data as it is not aware of the move. User proposed overriding Post ...
Reimporting static mesh doesn't respect changed lightmap settings
UE - Editor - Content Pipeline - Import and Export - May 11, 2023Licensee reports change of behaviour between UE4 and UE5 when reimporting a mesh after changing its lightmap build settings. Change of behaviour occurred in 17404767, which was to fix a similar pro ...
Material Layers "swap" location instead of shift downwards.
UE - Rendering Architecture - Materials - Oct 17, 2023Licensee request for this as it is affecting productivity. Likely requires a method of allowing a user to choose which behaviour they prefer. For reference, the behaviour changed in CL 11684461 to f ...
External Actors can hold stale references to Blueprint classes as edited instance properties
UE - World Creation - Worldbuilding Tools - Nov 14, 2024When a component is removed from a class that exists as an instance with external actors enabled, a deleted BP component on an actor will remain referenced by the instance. Disabling External Actor ...
The "Make Static Mesh" feature for skeletal meshes does not account for disabled mesh sections.
UE - Anim - Rigging - Skeletal Editor - Dec 11, 2024The licensee was not able to make static meshes with the correctly disabled sections from a skeletal mesh in the current implementation of the "Make Static Mesh" button in the editor. They have prov ...