Unreal Engine Issues
Unreal Engine Issues
Console is off screen in VR preview when windows scaling is set to 150% or above
UE - Platform - XR - Jun 29, 2018Windows scaling appears to affect the HMD if the project is open on a screen with window scaling being used. ...
Significant editor slowdowns when moving blueprinted actors while having a different complex blueprint open
UE - Framework - Blueprint Editor - Jun 7, 2021A Blueprinted actor's construction script time can be affected by the complexity of an opened level Blueprint. ...
Result pin of Cast Node of ControlRig can not break
UE - Anim - Rigging - Control Rig - Jul 26, 2023In UE5.1, the Result pin of the ControlRig cast node could be broken, but it cannot be broken from UE5.2. ...
Simulate motion vectors can fail on camera cuts
UE - Anim - Sequencer - Jun 11, 2024r.MotionVectorSimulation 1 should simulate motion vectors when cutting cameras, but this appears to be broken on some loops. ...
Jump Animation for FPS template character breaks on land
OLD - Anim - May 6, 2015When jumping in the first person template project, the "is in air" animation continues to play after landing. Solution: Switching out the "FirstPerson_JumpStart Asset" node for the "FirstPerson_J ...
Rect Light Texture does not unload during level streaming in packaged game
UE - Graphics Features - Jun 2, 2023UE5.6+ - Mutable - IDPrefix crash when combining Child Objects, Add to Mesh Component and Extend Mesh Section.
UE - Anim - Mutable - Jul 21, 2025So the issue seems to be a combination of Add To Mesh Component and Extend Mesh Section. I've tried this in Epic Launcher 5.6, 5.6 in-house modified engine as well as ue5-main 5.7 from git (editor ...
Local Exposure can cause large variations in PreExposure under certain conditions
UE - Graphics Features - Sep 16, 2025PreExposure is influenced by LocalExposure in PostProcessEyeAdaptation.cpp:1265. It appears when the scene is particularly dark and using manual exposure, the LastAverageLocalExposure can read a lar ...
Documentation button redirects to 404 error page in Match3
UE - Platform - Mobile - Aug 23, 2016The documentation button does not redirect to the correct documentation page. Tested on iPhone6S_6240 OS: 9.3.4 ...
Enable Slate layout caching Will cause the Stop/Play Buttons to disappear
UE - Editor - UI Systems - Slate - Dec 17, 2018When using the command Slate.EnableLayoutCaching 1, The Play button is removed from the tool bar after exiting play. ...