Unreal Engine Issues
Unreal Engine Issues
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 ...
"Invalid resource entry creating uniform buffer" when running Vulkan on Mobile
UE - Platform - Mobile - Apr 30, 2019Android projects in 4.22.1 crash on launch with Vulkan enabled. Did NOT reproduce in 4.23 MAIN at CL 6156332 4.22.1 release CL is the same as a related fix for this ( [Link Removed] ) ...
Map Get Node Pins In Niagara Module Scripts Can't Search For Standard Data Types
UE - Niagara - Mar 16, 2020This wasn't like this in 4.24 (see attached images). If you create a variable Engine.Owner.Position the search will find it however. Found in 4.25 Preview 2. Reproduced in 4.26 Main. ...
Thumbnails do not display shadows after opening and saving the asset
UE - Graphics Features - Lumen - Apr 14, 2020Shadows in an asset's thumbnail disappear after opening and saving the asset, whether changes are made or not. Tested: 4.24.3 CL#11590370, 4.25P6 CL#12493028, 4.26 CL#12767035 ...
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 ...
Splitting a struct pin on a function node does not display tool tips on resulting struct member pins
UE - Gameplay - Blueprint Editor - Sep 15, 2021Splitting a struct pin on a function node does not display tooltips for the resulting struct member pins. upd. Regression was checked on //UE4/Release-4.26 CL 15973114, issue wasn't reproduced. Re ...
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 ...