Unreal Engine Issues
Unreal Engine Issues
Move SAnimTimeline, SAnimTrackArea, and SAnimTrack to public API
UE - Anim - Runtime - Sep 14, 2025I wanted to be able to make use of the same widgets the AnimSequence uses for its timeline with play/pause, rewind, etc. However I discovered this was all in private folders in the Persona plugin. ...
GeometryCollectionPhysicsProxy::FieldParameterUpdateCallback() not removing invalid Commands, leading to performance issues
UE - Simulation - Visual - Aug 30, 2025GeometryCollectionPhysicsProxy::FieldParameterUpdateCallback() not removing invalid Commands, leading to performance issues. The licensee has provided their analysis: We seem to have stumbled acro ...
BP Debugger: Unable to inspect debug data for ForEachLoop ArrayElement, Array_Get and Break Struct output pins
UE - Framework - Blueprint - Aug 26, 2025Context The blueprint debugger allows you to trigger breakpoints and inspect the current state of variables, both member variables, local variables and persistent UberGraph variables. Problem The ...
Sub-world partitions do not properly handle partial editor loading as world partition standalone level instances' spatially loaded actors do not get loaded even when the Level Instance is force loaded or loaded in by region.
UE - World Creation - Worldbuilding Tools - World Partition - Aug 19, 2025Context Level Instancing is a level-based workflow designed to improve and streamline the level editing experience. In a standalone Level Behavior, when the Level Instance Actor is loaded through it ...
HighResShot Alpha always 255
Expected behavior is that screenshot alpha should be 0 for pixels that did not have anything rendered into them. ...
Incorrect resolution used because SetProcessDpiAware() is not called when bAllowHighDPIInGameMode=False
UE - Rendering Architecture - Aug 8, 2025The incorrect resolution is used on computers with 4k monitors that use DPI scaling (default 150%) because the default for UE projects is bAllowHighDPIInGameMode=False which results in SetProcessDp ...
[AI] Changing NavMesh Resolution in config file does not update the quantFactor of existing navmesh
UE - AI - Navigation - Aug 6, 2025When we changed the resolution in the config, if you open a map and then look at the navmesh, the resolution it shows is the updated one from the config (assuming you haven't overridden anything) ...
Interaction between sublevels and LevelSequences can break actors attachments hierarchy of the sublevel.
UE - World Creation - Worldbuilding Tools - Aug 6, 2025Having a LevelSequence opened and unhiding a sublevel can break the attachment hierarchy of the actors that are inside the sublevel. This also affects to the sublevel asset itself. ...
Crash when displaying lumencards on map with many objects
UE - Graphics Features - Lumen - Aug 1, 2025There is a thread conflict between FRDGBuilder execution in Background Worker and LumenVisualizer's LumenCard add/delete process. When lumen cards are displayed in a scene with many objects, a crash ...