Unreal Engine Issues
Unreal Engine Issues
PlanarReflectionCaptureComponent preview crash
UE - Graphics Features - Mar 15, 2019Toggling the Preview Plane boolean for the Planar Reflection Capture Component causes the editor to crash. Tested in 4.22 (CL - 5365847), 4.23 (CL - 5408081) ...
Ray Traced Reflections Get Darker The Higher The Rougness Value is for Metallic Materials
UE - Graphics Features - Lumen - Jun 11, 2019Instead of reflecting an average color of the surrounding, reflections become black with increased roughness values. Found in 4.22 CL# 6574378 and 4.23 CL# 6925347 ...
Attached actor in Sequencer does not detach regardless of the detach state settings until Sequencer is restarted
UE - Anim - Sequencer - Jan 29, 2020Attached objects in sequencer do not detach with newly specified "When Finished" property until Sequencer is restarted. Tested in: 4.23.1 CL#9631420 4.25 CL#11062379 ...
Setting an overlay's alpha to 0 does not display as fully transparent
Tools - Feb 19, 2020Safe zone overlay ignores alpha when set to 0.0 in DefaultEngine.ini. Tested: 4.23.1 CL#9631420 , 4.25 CL#11341939 ...
M_Volumetric_Sky_Prototype Material has compile errors
UE - Content - Engine - Mar 17, 2020The material "M_Volumetric_Sky_Prototype" has numerous compile errors that prevent it from being used. This was reported and tested in 4.25 Preview 2 (CL-12055273) and reproduced in 4.26 (CL-121923 ...
Duplicating BP actors reset edited Variables to Default Value if Variables name start with Chinese Character
UE - Foundation - Core - Jul 29, 2020Hints: It has no problem in 4.24, only happening in 4.25 It has no problem as long as the Variable name is contained with Alphabat(English characters) fully; or start with Alphabat(A_变量 is fine) ...
Editor 'Build All Levels' discards Volumetrics Lightmaps in persistent level
UE - Graphics Features - May 14, 2025Building the level or lightmaps can clear the volumetric lightmap. In 5.5, this requires you to perform a full build, or a lighting only build with a BSP brush in the scene. In 5.6, all level build ...
Parameter Group Names are lost when assigned in Material Functions
Tools - Jan 26, 2015Parameters within a Material Function which have a specific Group assigned lose the group information when an Instance is created. Reproduced in 4.7 Preview 4 and Main Promotable-CL-2412886 ...
Game mode override isn't working when rendering a Sequence
UE - Anim - Sequencer - Oct 17, 2016Game mode override isn't working when rendering a Sequence Regression: YES Working: 4.14 Release CL:3164219 Broken 4.15 Dev-Sequencer CL:3164583 ...
Full Trigger Press Does Not Paint Foliage in VR Editor
UE - Editor - Workflow Systems - Oct 31, 2016With foliage selected, half pressing the trigger will paint foliage in the level. A full trigger press will not paint foliage. This is a bug occurring in 4.14 but not in 4.13. ...