Unreal Engine Issues
Unreal Engine Issues
Crash when using adaptive virtual texture
UE - Graphics Features - Mar 24, 2021A check() is being hit intermittently when using adaptive virtual texture. check(Entry.Magic == Handle.Magic) inside FVirtualTextureProducerCollection::GetProducer ...
Set Niagara Variable (Object) for Texture Object fails
UE - Niagara - Jan 28, 2022Set Niagara Variable (Object) does not work for texture objects. ...
Material Instance Platform Stats don't update when Material Layer parameters are changed
UE - Rendering Architecture - Materials - Oct 14, 2025The instruction count appears to update properly if the whole asset editor is closed and reopened. ...
Event not saved correctly when duplicating Level Sequence
UE - Anim - Sequencer - Nov 21, 2019This issue is similar to [Link Removed]. But I tested the shelve 10164190 mentioned in the comments. It didn't work. ...
Planar Reflections do not respect SkyLight intensity
UE - Graphics Features - Nov 14, 2017Planar Reflection actor does not reflect the intensity change of the SkyLight. In attached images, the Intensity of the SkyLight is set to 2. The darker area on the right is affected by the Plana ...
ObjectScale returns a Cascade Mesh particle's XYZ scale as 1.0
UE - Niagara - May 13, 2020Sampling a Cascade Mesh Particle's scale always returns XYZ as 1.0 This is a regression from UE4/Release-4.24. This does NOT affect Niagara Mesh particles. I've attached a Cascade (left example ...
“Receives Decals” is not respected on Procedural Mesh Component
UE - Graphics Features - Oct 14, 2022(Enduring Games) I investigated it and found that the following primitive data flag test in BasePassPixelShader.usf fails: (GetPrimitiveData(MaterialParameters).Flags & PRIMITIVE_SCENE_DATA_FLAG_DE ...
Cannot paint landscape layers onto tiled landscapes
UE - LD & Modeling - Terrain - Landscape - Jun 30, 2015paint layers do not take effect on all tiled layers that have a material incorporated if a user attempts to paint on them from the persistent level. ...
GPU Lightmass ignores IES Profiles on Static Lights while building lighting
UE - Graphics Features - Jun 8, 2022This is a regression tested in //UE4/Release-4.27 CL#18319896 GPU Lightmass ignores IES Profiles on Static Lights while building lighting. Tested with different Global Illumination and Reflection s ...
Changing screen percentage while in VR Preview will change screen coords for post process shaders
UE - Platform - XR - Jan 30, 2015If a post process volume is set to use a material shader, reducing the screen percentage while in VR Preview will shift the coordinates left/right. ...