Unreal Engine Issues
Unreal Engine Issues
Oculus Go & Quest: Relaunching app immediately after exiting causes device to freeze
UE - Platform - XR - Jul 26, 20184.20 Oculus Go projects cause the device to lock if immediately relaunching after exiting. It does not occur if:You wait ~20 Seconds before relaunchingYou press the power button after closing the a ...
Widget components and widgets in screen space are not the same color
UE - Editor - UI Systems - Jun 27, 2016Widget components appear to be affected by lighting. This causes differences in color between widget components and widgets that have been added to the viewport. ...
User Defined Struct causing crash due to accessing freed memory when using Stompmalloc
UE - Gameplay - Feb 14, 2019A licensee has reported that Custom Structs can cause a crash when using StompMalloc under certain situations. Regression?: No This occurs in 4.20 ...
Sometimes CharacterMovement stops at very low steps (quite lower than Max Step Height).
UE - Gameplay - Player Movement - Jul 11, 2016Sometimes CharacterMovement stops at very low steps (quite lower than Max Step Height). Capsule radius of Character is 50cm, Max Step Height is 45cm, step heights is around 10~30cm, MaxWalkSpeed is ...
Blurry RVTs after camera jump
UE - Graphics Features - Aug 7, 2025When using Runtime Virtual Textures (RVT) on landscape in UE 5.5+, nearby tiles may remain blurry (low-resolution mips) after launching PIE or making large camera jumps (e.g. via bookmarks or viewpo ...
Implied Decal Blend Modes don't properly account for Material Attributes usage
UE - Graphics Features - Sep 28, 2021I've attached a project with the necessary materials that demonstrate this issue. I would expect that just because a Set Material Attributes node is inside a material graph it wouldn't affect the de ...
Particles Do Not Obey Lighting Channels
UE - Niagara - Apr 17, 2018Particle systems ignore lighting channels - no matter what channel a light is on (even if no channels are selected), it will affect lit particles. Changing lighting channels on the particle itself h ...
SplineMeshComponent's collision will start to distort the longer the Spline becomes
UE - Gameplay - Nov 30, 2016SplineMeshComponent's collision will start to distort the longer the Spline becomes This is a regession. It was working in 4.13.2-3172292 User Description: When drawing out a long spline mesh ( r ...
Sub Surface Shading Model has Strange Blotch Color Artifacts when Used with a Ambient Cubemap
UE - Graphics Features - Sep 23, 2019Sub surface shading model has strange blotch color artifacts when used with ambient cubemap. Since the subsurface profile shading model can't be used with ambient cubemap I wanted to use the regular ...
Geometry in sublevel created with "Load Level Instance" ignores level transform
UE - LD & Modeling - Modeling Tools - BSP - Sep 26, 2017Geometry in sublevel created with "Load Level Instance" ignores level transform. Other objects, such as Static meshes are affected by the transform. This issue is not a regression. Versions tested: ...