Unreal Engine Issues
Unreal Engine Issues
Realtime Rendering toggle disabled after using Cloth Painting
UE - Simulation - Visual - Jul 29, 2021After finishing cloth painting, the ability to toggle Realtime Rendering in the viewport is greyed out. Additionally, the Disable Realtime Override button doesn't seem to have any effect. This probl ...
Gameplay Abilities CancelAllAbilities not working as expected
UE - Gameplay - Oct 24, 2019in AbilitySystemComponent_Abilities.cpp, line:844 CancelAllAbilities() does not appear to be working as expected. There is a check before cancelling all abilities. However, this check uses the Cl ...
DefaultSceneRoot causes Get Actor Bounds to Return 128
UE - Gameplay - Jun 1, 2016When using the Default Scene Root component in a blueprint with no additional components, the box extent of the Get Actor Bounds node is returning 128,128,128 instead of the expected 0,0,0. If you ...
Draw at desired size does not return to being false when unchecked
UE - Editor - UI Systems - Aug 4, 2017When setting "draw at desired size" for a widget component to true, the "Draw size" will no longer respond to input. ...
Asynchronous Image Loading from Disk Documentation leads to memory leak
Docs - Sep 18, 2019The documentation example to create your own asynchronous image load from disk results in a memory leak that is noticeable using the task manager. ...
If any light source is deleted, and a single light has its visibility state changed in LightMixer, all the other lights in the scene that were invisible turn visible
UE - Virtual Production - Tools - Jul 31, 2025If any light source is deleted, and a single light has its visibility state changed in LightMixer, all the other lights in the scene that were invisible turn visible. The behavior only shows after d ...
4.24 Instanced Stereo Distortion Error in ComputeBufferUVDistortion
UE - Graphics Features - Nov 13, 20194.24 moves distortion calculations to the file DistortionCommon.ush and its`ComputeBufferUVDistortion` function. The code in the INSTANCED_STEREO define no longer works as `Interpolants` isn't passe ...
Download Image BP node no longer works with links to local files.
UE - Online - Mar 5, 2020The Download Image BP node no longer works with links to local files with links such as "file:///C:/image.jpg" . This used to work, and confirmed working in 4.22, but is no longer the case. https:/ ...
Foliage Instanced Static Meshes disappear when FISM Component BP is compiled
UE - World Creation - Worldbuilding Tools - Foliage - Nov 10, 2017This bug removes foliage from a level when the Component Blueprint is compiled. Switching the Foliage type asset to another component will cause the issue to stop occurring. The Component Blueprint ...
Mouse dragging cursor accelerates significantly on Mac
Tools - Jan 18, 2017This also occurs in 4.14.3 This does not occur on Windows. Could not get this issue to reproduce while recording the screen with quicktime player, but if you experience it in person it really feel ...