Unreal Engine Issues
Unreal Engine Issues
Certain particle effects in ContentExamples pause when looked at on Mac with Metal
UE - Platform - Apple - Aug 20, 2016Certain particle effects in ContentExamples stop playing when looked at from a specific angle. The affected demos are 2.1, 2.4, 2.5, and 2.7 Seen on an Nvidia MacbookPro and AMD MacPro Does not o ...
Adding Multiple Scene Components to an Actor Causes Parenting Errors
UE - Gameplay - Components - Jan 5, 2016Attempting to add multiple instances of a Scene Component that was created in code and contains a component such as a Box Collider causes the Box Colliders of each Scene Component to be parented to ...
Blueprint icon flashes when hovered over
UE - Editor - Content Pipeline - Content Browser - Mar 24, 2015Blueprint icon flashes constantly when mouse is hovering over it; this only occurs with a specific type of blueprint class. . Branch: Binary, from Launcher . Build Version: 4.7.3 . Description: T ...
Skylight has too much influence on Subsurface Scattering
UE - Graphics Features - May 9, 2017Users on the AnswerHub are reporting that Skylights have too much effect on Subsurface Scattering. The argument here seems to be Movable Skylights versus Static/Stationary and their results regardi ...
Unable to Expand the Class Dialog Menu on Mac when Creating New Blueprint Class
UE - Platform - Apple - Apr 24, 2015Unable to reproduce internally. The user is unable to expand the class dialog menu when creating a new blueprint class on his Mac. He provides a video showing the issue he is experiencing in 4.7.5 ...
Overridden functions in Child Blueprints cannot be converted to/from pure functions
UE - Gameplay - Blueprint - Jun 27, 2015Overridden functions in Child Blueprints cannot be converted to/from pure functions. Reproduced in 4.8.1 and Main (//depot/UE4/Promotable-CL-2601051) ...
AnimNotify serialization crash in editor
UE - Runtime - Animation - Mar 15, 2026The crash is caused by changing the variable type of an AnimNotify that is already referenced by a montage. This issue cannot be reproduced in 5.6. ...
Find Collision UV Returning Unexpected Values
UE - Gameplay - Jan 19, 2017Find Collision UV is returning values that are above 1.0, when it is expected that these values would remain between 0 and 1. ...
[Waveform Editor] - Changing the Edit time on a Sound Wave that has TotalSamples=0.0 can crash editor
UE - Audio - WaveformEditor Plugin - Nov 10, 2022Rapidly changing the End Time on an asset that has TotalSamples=0.0 in the WaveFormEditor cases the editor to crash. Work around is to reimport the asset, which will restore that value. The crash hi ...
Moving a Copy of an Actor from Persistent to Sublevel Dirties Persistent Level
Tools - Aug 18, 2017Using Alt-Drag to move a copy of an actor from the persistent level to a sublevel (when the sublevel is selected as the current level in the Levels window), the persistent level is getting marked as ...