Unreal Engine Issues
Unreal Engine Issues
External Reference Spam converting projects to 4.10
UE - Gameplay - Mar 17, 2016Converting a project from 4.8.3 to 4.10.4 causes external reference spam in the message log>map check window. Seems directly related to [Link Removed]. Making new jira on request. ...
Swarm Coordinator is not distributing Lighting Builds
UE - Foundation - Core - Jul 20, 2015Swarm Coordinator in 4.8.1/2 is not distributing light builds across accessible agents. If you have and open a Coordinator included in the 4.7.6 build of the Engine, Coordinator is distributing cor ...
Blurry RVTs after camera jump
UE - Graphics Features - Aug 7, 2025When using Runtime Virtual Textures (RVT) on landscape in UE 5.5+, nearby tiles may remain blurry (low-resolution mips) after launching PIE or making large camera jumps (e.g. via bookmarks or viewpo ...
Initial Modules are clamped to a 0 to 1 time range
UE - Graphics Features - Sep 18, 2015The Initial Modules appear to be clamped to a zero to 1 time frame since 4.8 was released. Projects that are converted from 4.7.6 will have correctly working particle systems, but adding a new part ...
Pressing "X" to clear text field results in closing window instead.
Tools - Aug 12, 2015In the event graph of a newly created Blueprint, in the "All Actions for this Blueprint" window brought up by right clicking the grid, the window will close by pressing "X" in the text field, instea ...
Implied Decal Blend Modes don't properly account for Material Attributes usage
UE - Graphics Features - Sep 28, 2021I've attached a project with the necessary materials that demonstrate this issue. I would expect that just because a Set Material Attributes node is inside a material graph it wouldn't affect the de ...
Particles Do Not Obey Lighting Channels
UE - Niagara - Apr 17, 2018Particle systems ignore lighting channels - no matter what channel a light is on (even if no channels are selected), it will affect lit particles. Changing lighting channels on the particle itself h ...
SplineMeshComponent's collision will start to distort the longer the Spline becomes
UE - Gameplay - Nov 30, 2016SplineMeshComponent's collision will start to distort the longer the Spline becomes This is a regession. It was working in 4.13.2-3172292 User Description: When drawing out a long spline mesh ( r ...
Copying a call to a Custom Event or Function in another Blueprint and pasting it in the Blueprint the Custom Event or Function comes lives in will cause a compile warning or failure
UE - Gameplay - Blueprint - Apr 17, 2015Copying a call to a Custom Event or Function in another Blueprint and pasting it in the Blueprint the Custom Event or Function comes lives in will cause a compile warning or failure. In 4.7.5 it giv ...
Sub Surface Shading Model has Strange Blotch Color Artifacts when Used with a Ambient Cubemap
UE - Graphics Features - Sep 23, 2019Sub surface shading model has strange blotch color artifacts when used with ambient cubemap. Since the subsurface profile shading model can't be used with ambient cubemap I wanted to use the regular ...