Unreal Engine Issues
Unreal Engine Issues
PIE captures mouse when "Game Gets Mouse Control" is disabled
Tools - Oct 31, 2017When entering PIE, the mouse is captured by the viewport regardless of the "Game Gets Mouse Control" setting. Regression: No - Same behavior occurs in 4.17.2 ...
Zero Length Raycasts/Sweeps not returning hits
UE - Simulation - Physics - Apr 11, 2019Sweeps/Raycasts do not return hits for zero length queries. This is a regression from 4.21, where zero length Sweeps/Raycasts correctly returned hits. ...
Motion controller components created in c++ do not appear to update their location
UE - Platform - XR - Apr 17, 2019The motion controller component does not appear to update it's location if was created in a C++ project. regression: This appears to work as expected in the 4.21 release of the engine ...
When rendering out TM-TrackEvaluation we do not hear audio
UE - Anim - Sequencer - Jan 21, 2019Noticing that we do not hear audio when rendering out TM-TrackEvaluation. Oddly this doesnt happen with SubwaySequencer content. Regression: No this occurs with our content in 4.21 as well. ...
Fractured Geometry Collection triggers a crash when colliding with an Animation Blueprint with a Rigidbody Node
UE - Simulation - Core - Sep 25, 2023This is not a regression. Tested in //UE5/Release-5.2 CL26001984 The editor crashes when a physics asset of an animation with rigid body collides with geometry collection. ...
LevelSequenceActor sequencer loaded with DataLayer does not progress track when played
UE - Anim - Sequencer - Nov 1, 2023In UE5.2, there seems to be a problem with the initialization of the reloaded LevelSequenceActor. SequencePlayer->Initialize is not called in ALevelSequenceActor::InitializePlayer() and Tick regist ...
Rotator visual helper appears in local Presentation exports
TM - Tools - Nov 6, 2025Reported in SF [Link Removed] The Rotator animator's visual helpers will be visible in locally exported Presentations when it should be hidden. This does not affect the Translator animator. ...
In Standalone mode, when reading world partition actor descriptors for BP actors, "bIsSpatiallyLoaded" receives its value from the native base class instead of the BP class, so BP actors are loaded/unloaded based on the wrong condition.
UE - World Creation - Worldbuilding Tools - World Partition - Oct 15, 2024Consider an actor defined in C++ with "bIsSpatiallyLoaded" set to true (the default), and a derived blueprint that overrides "bIsSpatiallyLoaded" to false. Now consider an actor instance of that blu ...
Physics actor with physics toggled will fall through static meshes set to Movable
UE - Gameplay - Jul 20, 2016Physics actor with physics toggled will fall through static meshes set to Movable User Description: Basically, what this project does is enable simulate physics on the black cube in the middle, th ...
SetHitResultFromShapeAndFaceIndex crash
UE - Simulation - Physics - Nov 15, 2019SetHitResultFromShapeAndFaceIndex calls if(PxMaterial* PxMat = PShape->getMaterialFromInternalFaceIndex(FaceIndex)) { OutResult.PhysMaterial = FPhysxUserData::Get<UPhysicalMaterial>(PxMat->userD ...