Unreal Engine Issues
Unreal Engine Issues
MID TextureCollections don't work with Post Process Overlays
UE - Rendering - RHI - Aug 24, 2026TextureCollectionParameters in a material assigned to a Post Process Overlay are not overridden by a MID because CopyInterpParameters in Engine\Source\Runtime\Engine\Private\Materials\MaterialInsta ...
NavMesh does not update properly when "Can Ever Affect Navigation" is toggled (For Static Meshes)
UE - AI - Sep 15, 2015This issue is related to [Link Removed] (which was fixed). However if the user creates a new actor and then adds a static mesh they can end up with permanent holes in their nav mesh. If the user tog ...
Timeline functions do not work inside of Blueprint functions
UE - Gameplay - Blueprint - Dec 20, 2014I could not repro their issue in main. They supposedly recently upgraded to 4.5. I was wondering if you could divide an conquer, and figure out when we fixed this. **EDIT** Was able to repro in mai ...
Event does not fire at end of playback range
UE - Anim - Sequencer - Aug 29, 2016Event does not fire at end of playback range. This does work with Forced Fixed Frame Interval Playback so wonder if this is invalid? I have some test content set up in //UE4/Main QAGame QA-Promoti ...
Widgets can no longer take focus after clicking somewhere other than the widget itself
UE - Editor - UI Systems - Jan 25, 2017Widgets can no longer take focus after clicking somewhere other than the widget itself. The input mode appears to change, but does not change back when clicking widgets Notes: -This issue did not a ...
Editor Crashes When Cloth Asset Is Applied To Material With Support Compute Skincache Enabled
UE - Simulation - Physics - Character - Feb 24, 2017After enabling Support Compute Skincache if you attempt to apply a cloth asset to a material in the skeletal mesh editor the engine will crash. This may seem similar to [Link Removed] but I confir ...
Warning: repairing painted vertex colors due to static mesh re-imports! in ContentExamples
Docs - Samples - May 4, 2017Not a regressionInfo Repaired painted vertex colors in 0.0s for 2 components in /Game/Maps/Leveldesign_Workflow. Resave map to fix. Warning Spent 0.0s repairing painted vertex colors due to stati ...
Random Deviation of 0 causes service node instantiation fail
UE - AI - Apr 17, 2018Licensee has 4 Services that aren't being initialized with their respective Tasks when they Plays in Editor. If the Behavior Tree is opened first, the warnings do not appear. All 4 of the Services h ...
Foliage Lightmaps Are Incorrect When Using a Precomputed Lighting Scenario
UE - Graphics Features - Oct 2, 2018Foliage lightmaps will not match properly to the lighting when using a lighting scenario. They will look normal if you select the Foliage tool but in PIE they will still be incorrect. Working as ex ...
GPU Particles Don't Spawn at Correct Location When Used as Collision Event Receiver
UE - Niagara - Oct 8, 2018GPU emitter doesn't spawn particles at expected location when it is an event receiver. Also disabling Interpolate Spawning in the emitter properties affect this behavior as well, making the particle ...