Unreal Engine Issues
Unreal Engine Issues
Race condition in full builds of UE4 engine source
UE - Foundation - Cpp Tools - UnrealBuildTool - Sep 26, 2019This is a race condition caused by how "Clean.bat", a batch file used during rebuilds, tries to manually rebuild the UnrealBuildTool project when it runs. This causes a spam of UnrealBuildTool build ...
HDRI Backdrop Actor not working on mobile
UE - Platform - Mobile - Sep 26, 2019The new HDRI Backdrop actor does not appear to be functioning on mobile. ...
Investigate deprecating byte-swap during save
UE - Foundation - Core - Sep 26, 2019All major UE target platforms are little-endian. Saving packages with byte-swapping seems to have been broken for more than six years, when CL# 1495479 changed `FArchive::ByteOrderSerialize()` so th ...
EQS Debug Draw Shows Old Query Information
UE - AI - Sep 26, 2019Sample project: [Link Removed] Debug draw update correctly: [Link Removed] Debug draw update incorrect: [Link Removed] ...
VR Mode - Landscape Mode - Flatten tool crash
UE - LD & Modeling - Terrain - Landscape - Sep 25, 2019Crash will occur when attempting to use Flatten tool on landscape while in VR Editor. Confirmed in 4.24 MAIN @ CL 9084132 Confirmed on Vive and Rift ...
ClearMotionVector does not clear cloth motion blur velocity
UE - Graphics Features - Sep 24, 2019ClearMotionVector does not clear cloth velocity that causes temporal AA or motion blur. ...
Long Load Times With PIE When Using Tessellation On Landscapes
UE - LD & Modeling - Terrain - Landscape - Sep 24, 2019When having large landscapes with a tessellated material, loading time after hitting Play in Editor is much longer than in 4.22. Found in 4.23 CL# 8386587 and 4.24 CL# 8971176 Working as expected ...
Combo Box String widget doesn't change color via function
UE - Editor - UI Systems - Slate - Sep 24, 2019Attempting to change the Foreground color of a Combo Box String in the Graph tab of the owning widget Blueprint has no effect. Tested in 4.20.3 (CL - 4369336), 4.21.2 (CL - 4753647), 4.22.3 (CL - 7 ...
Generate Lightmap UVs Fails Very Frequently on FBX Imported Meshes
UE - Editor - Content Pipeline - Import and Export - Sep 24, 2019Generate Lightmap UVs fails very frequently on FBX imported meshes. Found in 4.22 CL# 7053642, 4.23 CL# 8386587, 4.24 CL# 8971176 ...
Camera Fade does not work when HDR is enabled
UE - Graphics Features - Sep 24, 2019This issue only occurs when HDR is enabled. If it is not HDR, Camera Fade will work. The setting of the sample project is switched by Level Blueprint.[Image Removed] ...