Unreal Engine Issues

Vertex Interpolate Node Doesn't Work with Lightmass

The vertex interpolate node doesn't work with lightmass. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, and 4.21 CL# 4258917 ...

[CrashReport] UE4Editor_MediaAssets!UMediaPlayer::GetPlaylistRef() [mediaplayer.h:890]

Comment from user:double clicked on a media player asset that I just cloned 880 /** 881 * Get the current play list. 882 * 883 * @return The play list. 88 ...

Mobile projects crash with Event Driven Loader disabled

iOS + Android apps will crash on launch if Event Driven Loader is disabled. Confirmed in 4.23 MAIN at CL 5035898 ...

Camera FOV Above 90 Causes Landscape LODs to Flicker

Camera FOV Above 90 Causes Landscape LODs to Flicker Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 5660361, 4.23 CL# 5934407 ...

sRGB flag is enabled when importing hdr image file

The sRGB flag is enabled when importing hdr files. This is disabled in PostEditChangeProperty, but remains enabled if we do not edit the file. I think the sRGB flag should be disabled for hdr image ...

Landscape Resample Crashes Editor in Sublevel Map

Assets Jitter When Selected In Editor

When you are selecting an asset in the editor it jitters a little bit until unselected. Found in 4.25.0 Preview 1 CL#11723679 Reproduced in 4.26.0 Main CL#11724764 ...

Animating the camera and character with LiveLink makes the character tremble

GIF images are attached. The animation is smooth on the MotionBuilder side, but it is "slightly" wobbly in UE4. The licensee reports that the situation can be heavily shaken by the situation. Also, ...

The LOD is not reflected in Shadow when r.ForceLODShadow is set

When I looked into this feature, I noticed that ForceLOD was not set by the code below. Therefore, I confirmed that only Shadow can change LOD by changing as follows.[Link Removed] ...

Mac editor mobile preview crash with MSAA on

setting  GSupportsTimestampRenderQueries=false or r.GPUStatsEnabled=0 can fix it ...