Unreal Engine Issues

HISM(Hierarchical instance static mesh) has lightmap problem after building lighting

HISM has lightmap issues after build lighting ...

Soft Raytracing Shadows are flickering

[Image Removed][Link Removed] ...

nonstandard bsp additive brushes cause breaking/artifacting on other bsp brushes when colliding

if a nonstandard additive bsp brush collides with a standard additive bsp brush, the surfaces of the bsps break and artifact, causing numerous holes in the brushes. ...

Draw Line in HUD does not respect alpha < 1.0

Draw Line in HUD does not respect alpha < 1.0, instead drawing completely opaque in all circumstances. Regression (No) issue (does) occur in 4.10.4 ...

Dropdown selection box jitters when mouse is moved over top of it on Mac

This is a regression as it does not occur in 4.14.3 at CL 3248269 Update chris.wood: I think this might be a wobble caused by floating point errors in SMenuAnchor::Tick() ...

EnhancedInput Triggers can become stuck in an triggered state after pause when using Set Mode UI Only and CommonUI

Popping Ribbon UVs

Please see the Additional Link for related UDN information. The UV popping described can be subtle, depending on settings; it's affected by spawn rate and GPU vs CPU. The popping shown in the gif t ...

Custom Transition Notification Events do not update in the Event Graph when their name is changed in the Locomotion State Machine

It seems like the name will not update for the already place node automatically, however if a new one is created, the old name no longer appears in the node list and only the event node with the cha ...

Actors attached to editor only actors have incorrect location in PIE

Packaging failed with disabled plugin

Disabling any plugin causes packaging failure. No repro in 4.19 Also occurring when Disabling all platforms except for windows and changing configuration from development to shipping. ...