Unreal Engine Issues
Unreal Engine Issues
Investigate intermittent crash in CacheOptimizeIndexBuffer on Editor startup on Linux
UE - Platform - Linux - Nov 23, 2015Building 4.10 from the GitHub release branch on Linux fails to open after install and instead crashes Community Suggested Fix: Switching triangle order optimization off with r.TriangleOrderOptimiza ...
Max Angular Velocity Value Being Reset
UE - Gameplay - Jun 6, 2016The value of Max Angular Velocity on a component is being reset after changing the value and compiling the blueprint. Found in 4.12 binary, reproduced in Main CL 2994701. Could not reproduce in 4. ...
Dbuffer Decals will flicker when
UE - Graphics Features - Mar 30, 2016When applying a dbuffer decal to a surface with a small axis value for the decals size it will flicker. Attached gif to demonstrate. Reproducible in: 4.11 P8 CL-2916259 Dev-Main CL-2922677 ...
Skylight Indirect lighting Intensity has no effect
UE - Graphics Features - Dec 28, 2015The Skylight actor has minimal effect on indirect lighting compared with 4.10.1 and the Indirect Lighting Intensity slider has no effect at all. Image attached for comparison bwtween 4.10.1 and 4. ...
Real-Time Collision for Spline Mesh Not Working in Packaged Game
UE - LD & Modeling - Terrain - Landscape - Feb 23, 2016When attempting to dynamically set the collision of a Spline Mesh component, the collision settings are not kept in a packaged game. Found in 4.10.4. Reproduced in 4.11 Preview 6 and Main CL 28772 ...
Particle Bounds Don't Update Correctly After Moving Particle Component Via BP
UE - Graphics Features - Mar 30, 2017It appears that particle components don't update their bounds correctly when they are moved in a scene. If a particle emitter isn't currently visible at the start of the game it will remain culled. ...
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 ...
"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] ) ...