Unreal Engine Issues
Unreal Engine Issues
Bug in CurveLinearColor makes colors of Diffraction material white outside curve range, causing rendering artifacts
UE - Texture - May 14, 2025There seems to be a regression with linear textures (commonly for multi-channel masked textures) in UE5.4. Setting the "Encoding Override" (under Texture > Advanced > Source Color Settings) to "Line ...
Editor blocks Windows taskbar from showing if taskbar is set to auto-hide
Tools - Mar 16, 2016If the Windows taskbar is set to auto-hide and the editor is opened on the same monitor, the taskbar cannot be accessed while the editor has focus. ...
Root Motion interpolation is incorrect when use URO
UE - Anim - Runtime - Aug 3, 2018According to Licensee's report, Root motion is incorrect when use URO. I Investigated, in the case of "Montages Only" become TrailMode in URO. Normally Animation Interpolation has implementation, ...
Reflection across multiple viewports are different than original viewport.
UE - Graphics Features - Jan 21, 2016When viewing reflections in multiple viewports the reflections will differ from the original viewport. ...
Masked Materials using the Forward Renderer and MSAA results in banded Gradient
UE - Graphics Features - Feb 23, 2017Masked materials used in conjunction with MSAA and Forward Rendering results in a banded gradient which seem to correlate directly with the MSAA count variable. This is connected to the Forward Ren ...
AnimSequence's play rate is doubled when in a SyncGroup
OLD - Anim - May 11, 2018It is because that the RateScale is multiplied twice. First at UAnimSequenceBase::TickAssetPlayer : {{ const float PlayRate = Instance.PlayRateMultiplier * this->RateScale;}} Second at UAnimSeq ...
LocalHeightFog placed in 5.3 projects are invalid and not appearing when the project is updated to 5.4
UE - Graphics Features - May 24, 2024LocalHeightFog actors placed in levels for 5.3 projects are invalid and not appearing in levels after the project is upgraded to 5.4. This is likely due to LocalHeightFog being renamed to LocalFogVo ...
Physics actor attached during runtime doesn't have proper collision
UE - Gameplay - Oct 14, 2015Physics actor attached during runtime doesn't have proper collision User Description: It seems that the "Weld Simulated Bodies" option on the AttachToActor function (same with AttachActorToActor) ...
Collapsed Nodes do not move with their functions
UE - Gameplay - Blueprint - Apr 10, 2015When you create a function and collapse nodes within it, the collapsed nodes to not follow the function category switch. I also noticed that when you move the function around that has the collapsed ...
Reflection capture memory not released
UE - Graphics Features - Mar 16, 2020Until 4.23.1, the value of the Texture Memory Cube is reduced to an appropriate size. It is explained in the following thread:https://udn.unrealengine.com/questions/398103/index.html ...