Unreal Engine Issues
Unreal Engine Issues
ULevelEditorDragDropHandler::PreviewDropObjectsAtCoordinates : Should set proper referencer domain when ContentBundle is active
UE - World Creation - Worldbuilding Tools - World Partition - Aug 21, 2023ULevelEditorDragDropHandler::PreviewDropObjectsAtCoordinates sets the World as the ReferencingAsset when we should probably set the GameDataAsset for the current active ContentBundle if there is any ...
Paper2D Sprite doesn't cook deterministically
UE - Foundation - Core - Cooker - May 11, 2017The "DummySprite" asset in Plugins/Paper2D doesn't cook deterministically, and as such is always included in patches. ...
Game start slowing down when there are more than 10 sprites in the level
UE - Gameplay - Paper2D - Apr 10, 2018Sprites seem to be drastically affecting FPS in 4.19 projects on Mac devices. ...
[UDN 00456011] Actors attached to a static mesh socket inside a blueprint actor not updating when the mesh is moved.
UE - Gameplay - Aug 17, 2022Lots more info in UDN ticket: [Link Removed] TLDR is that if a construction script moves a child component with an attachment point, it's attached actors don't follow. This causes editor tools to n ...
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. ...
Editor Crashes When Enabling Closed Loop on Spline in Blueprint
Tools - Oct 18, 2016Editor is crashing when setting closed loop in the construction script of a blueprint. This did not occur in 4.12.5 following the same repro, this is a regression. ...
Metallic Materials Get Darker When Directional Light Is Set to Movable
UE - Platform - Mobile - Aug 20, 2018Metallic materials get darker when directional light is set to movable. In 4.19 the same material will render dark in all mobility of the directional light. Found in 4.19 CL# 4033788, 4.20 CL# 4233 ...
Destructible mesh: New generated Fracture Materials don't have any responded surfaces
UE - Simulation - Physics - Jun 27, 2018I think this issue was happen since 4.18 in which version Apex Destructible was move to Plugin ...
Twin Stick Shooter pawn can wiggle through collision in corners of Example Map
Docs - Samples - Dec 24, 2014If a user is using PIE and presses the twin stick shooter character blueprint against corners in the Example Map, it will clip through the objects and cross over to the outside of the map. Additiona ...
Camera Actor variable (array) no longer editable in Blueprints
UE - Gameplay - Jun 7, 2018This is a regression from 4.19. In 4.19 you were able to change the actor assigned to the array element in a Camera Actor variable. In 4.20 and 4.21 the field is grayed out and displays None with a ...