Unreal Engine Issues
Unreal Engine Issues
Niagara Sprite SubUV Skips Images
UE - Niagara - Aug 14, 2018Niagara SubUV will skip most images in a SubUV sprite. Every 8 frames on the time line once it starts spawning it will change its appears. Only 16 of the 64 images are shown from the SubUV. Found i ...
IsTraceHandleValid with default FTraceHandles has unexpected behavior on the first frame
UE - Simulation - Physics - Sep 18, 2018Because both FWorldAsyncTraceState's CurrentFrame and FTraceHandle are default initialized to 0, on the first frame, if a new Asnc Trace starts all default FTraceHandles will reference the same (now ...
Matinee not triggering when moved from one level to another
Tools - Oct 19, 2015It appears that if you create a Matinee in a Sublevel, and then subsequently move the matinee between levels. It will not keep associations with the attached actors in the Matinee and not trigger e ...
Painted Vertex Color on Meshes in BPs do not save when Movie is generated from Matinee
Tools - Jun 16, 2015When you render out a movie from a Matinee, the painted Vertex Colors on a Blueprint does not render, the meshes in the Blueprint revert to imported vertex color. Also Reproduced in 4.8.0 and Main ...
SceneTexture:Scene Color node renders black in Standalone, Launch On and Packaged Game
UE - Graphics Features - Jun 5, 2015When using a Blendable to render SceneTexture:Scene Color into the Post Process, it appears to render as expected in PIE and Simulate, but when viewed in Standalone, Launch On or a Packaged Game the ...
"Failed to find object 'Class None'" in project log after creation
UE - Foundation - Core - Nov 17, 2014Users reported seeing the line "LogUObjectGlobals:Warning: Failed to find object 'Class None.'" in the Output log after creating a project. I was able to confirm in a new blank code project without ...
Spawn Emitter At Location is not available in an Object Blueprint
UE - Gameplay - Blueprint - Feb 4, 2015Spawn Emitter At Location is no longer an available node in an Object Blueprint. It was available in 4.6.1 but is not in 4.7 or 4.8. Spawn Emitter Attached is still available in an Object BP. Teste ...
Using GENERATED_BODY() instead of GENERATED_UINTERFACE_BODY() in an Interface code class results in a UHT crash when trying to build the project.
UE - Foundation - Core - Mar 3, 2015Replacing GENERATED_UINTERFACE_BODY() with GENERATED_BODY() in 4.7.0 or above results in an Unreal Header Tool crash and build failure in Visual Studio. This was working in 4.6.1, but when tested i ...
Map load stalls in texture streaming code
UE - Graphics Features - Jun 13, 2017A change was made to AActor.GetComponents which appends the results instead of resetting the output array. This seems to only impact 2 places in the code, and has a big side effect in the texture st ...
Cannot undo moving a mesh via Pilot
Tools - Jan 2, 2018There is an issue where the undo does not affect movement made by piloting an object in a level. This issue does not appear to be a regression. Versions Tested: This issue occurs in all versions te ...