Unreal Engine Issues
Unreal Engine Issues
Changing Texture compression settings breaks Materials with mismatch on Texture Sample Sampler Type
UE - Rendering Architecture - Materials - Aug 5, 2015If you change a texture's compression settings, materials will show errors because of a mismatch in the Sampler Type of Texture Samples. This can be fixed by adjusting the Sampler Type and re-savin ...
Switching to different modes in the Modes panel causes PIE to take input from a connected VR headset for the Y axis camera movement
UE - Platform - XR - Dec 9, 2016If a VR headset is connected, it will be used for Y axis camera input in PIE if you have switched to and from the Landscape tab in the Modes panel. You can fix this temporarily by reopening the edit ...
[CrashReport] Mac crash in UE4Editor-Engine.dylib!LoadPhysXModules()::$_0::operator()()
UE - Platform - Apple - Jun 8, 2017This is a common Mac crash that has been occurring since 4.15. It shares the same callstack with [Link Removed], but that was verified fixed for 4.16.0, while this crash still continues into 4.16. ...
Material Ambient Occlusion Does Not Work With Skylight Set to Movable
UE - Graphics Features - Jul 27, 2018Material ambient occlusion does not work with the skylight set to movable. Setting the material to allow static lighting will fix the issue until the level is reloaded. Found in 4.19 CL# 4033788, 4 ...
The Brush Clip doesn't slice in othrographic view
UE - LD & Modeling - Modeling Tools - BSP - Jun 20, 2019Brush clip slicing doesn't work whenever slicing in Left sided Othrographic view mode. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 (CL - 6837701), 4.24 (CL - 7095658) ...
Indirect lighting not working for meshes
UE - Graphics Features - Jul 2, 2019Materials using the WorldAlignedTextures_Complex node causes the static meshes they are applied to to not receive indirect lighting. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053642), 4.23 (CL ...
Spatialized audio does not work in ActorSequence components or play in Sequencer Editor
UE - Anim - Sequencer - Aug 8, 2019A sequence made from a sequence actor component doesn't play audio in editor or in PIE when the child of another actor or track. This was reported and tested in 4.22.3 (CL-7053642). This was reprod ...
Crash after clicking the Build button on Linux
UE - Platform - Linux - Sep 17, 2019This crash is a regression from 4.22.3 (CL-7053642). If lighting is built by selecting "Build Lighting Only" the Editor will not crash. This does not reproduce on Windows with -vulkan. This was rep ...
Shader Complexity viewmode does not work on masked materials
UE - Graphics Features - Oct 16, 2019In engine versions 4.23 and above, the Shader Complexity Viewmode doesn't render appropriately for meshes with masked materials. Tested in 4.22.3 (CL - 7043647), 4.23 (CL - 8386587), 4.24 (CL - 961 ...
Alembic Files Import With Blocky UVs
UE - Editor - Content Pipeline - Import and Export - Dec 6, 2019Alembic files imported come in with blocky UVs. Attached is a zip with the files and pictures that show the issue. Found in 4.23.1 CL#9631420 Reproduced in 4.24 Preview 4 CL#10387632, 4.25 Main CL# ...