Unreal Engine Issues
Unreal Engine Issues
AllowAsyncRenderThreadUpdatesEditorGameWorld/AllowAsyncRenderThreadUpdatesEditor CVars are off by default and unsafe in Niagara
UE - Niagara - Mar 4, 2025This user made a github pull request: [Link Removed] but it was auto rejected. I think that we can consider taking their fixes, but keeping it disabled by default. ...
Landscape visualizers don't work on nanite landscape
UE - Graphics Tools - Terrain - Nov 24, 2025Landscape visualizers do not work on Nanite Landscapes. Also tested in //UE5/Main/, CL: 48569009 The licensee has provided a patch file with a potential fix. ...
Crash upon selecting CameraComponent in Sequencer when level is locked
UE - Anim - Sequencer - Aug 14, 2018Selecting a Camera Component in the Sequencer window when the level is locked causes the Engine to crash. This was reported and tested in 4.20.1 (CL-4233996). This was reproduced in 4.19.2 (CL-403 ...
Crash when launching Google VR project
UE - Platform - XR - Dec 12, 2016Attempting to launch a packaged Google VR game on android causes the game to crash. This has occurred on two other devices. This occurs in Main as well as Dev-VR. ...
Network profiler crash
UE - Networking - Aug 6, 2020Running with the -networkprofiler command line argument can crash the server on the first engine tick in FNetworkProfiler::TrackFrameBegin because the file writer archive hasn't been created yet. ...
Shooter Game Demo Controls have no Textures (Rendering White)
Docs - Samples - Jun 11, 2015The Textures for the Demo play bars in Shooter Game are rendering White in 4.8.0 release, appears fixed in Main Promotable-CL-2581018. ...
"Snap to Target, Keep World Scale" when attaching doesn't work properly if parent is scaled.
UE - Gameplay - Nov 11, 2015See UDN thread, which includes suggested fix. https://udn.unrealengine.com/questions/267677/attachactortocomponent-scale-issue-with-scaled-com.html ...
Particle Effects Do Not Play in Transition Maps
UE - Graphics Features - Oct 24, 2016Particle effects do not seem to be playing in transition maps. Found in 4.13.1. Reproduced in 4.12.5 and 4.14 Preview 1. ...
Cannot render more than one shot in a Master Sequence
UE - Anim - Sequencer - Oct 17, 2016Cannot render more than one shot in a Master Sequence Regression: YES Worked: 3164219 4.14 Releases Broken: 3164583 4.15 Dev-Sequencer ...
Joystick is missing from projects on certain iOS devices
UE - Platform - Mobile - Jan 11, 2017The Flying template is not displaying joysticks when deployed to iOS. Issue does not occur in: 4.14.3 - 3251583 Phones tested that have not experienced the issue: iPhone 6S_6240 ...