Unreal Engine Issues
Unreal Engine Issues
Undo Delete Subcomponent/Child Actor of Blueprint while Playing Causes Crash
UE - Gameplay - Blueprint - Mar 12, 2015The title pretty much explains it all. When creating a blueprint and using a subcomponent or child within that blueprint, deleting the child actor, and then undoing while in play, causes crash. ...
Message to rebuild lights does not display after static mesh position has changed
UE - Graphics Features - Aug 28, 2024In a static lighting environment, moving static objects no longer marks the built lighting as invalid. This prevents the on-screen warning from appearing. Regression introduced in CL: 25964466 on / ...
Bake Pose is not applied correctly when using LODSettings asset
UE - Anim - Rigging - Jul 16, 2025The Bake Pose setting does not work when using a SkeletalMesh LODSettings asset. After the change in CL22878911, the BasePose in the LODSettings asset is no longer copied to the BakePose in the skel ...
Editable text boxes (UMG) are displying the incorrect character when packaging to HTML5
UE - Platform - Mobile - Feb 10, 2015When you add a editable text box to a project via UMG and package and deploy that project for HTML5, The Text box will show invalid characters when certain keys are pressed. I have attached a photo ...
Custom Events with Default parameter names causes an internal compile error
UE - Gameplay - Blueprint - Nov 2, 2016Custom Events with Default parameter names causes an internal compile error User Description: I'm not sure if it's a bug,but I post it in bug reports in case it is.Here is the problem: create a c ...
Collision Responses will reset to previous setting after changing the Preset Collision Profile
OLD - Anim - Mar 1, 2017Collision Responses will reset to previous setting after changing the Preset Collision Profile. After the change is made and "Accept" is pressed, the Collision Responses will still have the old ch ...
[MetaSounds][Wave Player] - 5.1 Wave Player channel output maps differently for Vorbis than other codecs
UE - Audio - MetaSounds - Aug 16, 2023The channel output for 5.1 Waveplayer on MetaSounds is different when Platform Default (Vorbis) codec is chosen on Windows Platform Default - L, C, R, LS, RS, LFEBink, PCM, ADPCM - L, R, C, LFE, LS ...
Action Rpg Sample Creating a new GameplayCue handler crashes the editor in 4.24
UE - Gameplay - Dec 17, 2019In Action Rpg sample, creating a new Blueprint of type GameplayCueNotifyActor or GameplayCueNotifyStatic, results in an Engine crash. The call stack leads to a PrintF Slate warning message that woul ...
Deadlock in UAnimationSequencerDataModel::Evaluate where FScopeLock Lock(&EvaluationLock) blocks execution indefinitely
UE - Anim - Nov 4, 2025When both the Sequencer Editor and an Animation Curve Editor are open for the same animation asset, the editor freezes completely upon editing the curve. Analysis indicates that the freeze is caus ...
Slight delay when switching between UMG buttons on Mac
UE - Editor - UI Systems - Dec 30, 2014There is a slight delay when clicking between two different UMG buttons on Mac. Tested on OSX 10.10.1. There also appears to be a flicker on the Menu Bar. ...