Unreal Engine Issues
Unreal Engine Issues
Open Level is not working properly on mobile devices
UE - Foundation - Core - Cooker - Dec 28, 2015Projects created with an 'Open Level' node added within their blueprint are not working correctly on mobile devices. They do however work on Mobile PIE, PIE and Windows. Occurs on: 2894_SamsungGala ...
[Feature Request] ReferenceViewer: Accept dynamic collection
Tools - Oct 29, 2019In 4.23, Setting a dynamic collection to the collection filter slot does not display any result. And there are no information about dynamic collection doesn't work in collection filter. (FCollectio ...
USD Stage is not available on Mac and Linux
UE - Editor - Content Pipeline - Import and Export - Dec 17, 2019On Mac and Linux the option to open the USD Stage window is not there like it is on Windows. This is not a regression since USD Stage was not preset in 4.23.1 (CL-9631420) on any platform. ...
Attached actor in Sequencer does not detach regardless of the detach state settings until Sequencer is restarted
UE - Anim - Sequencer - Jan 29, 2020Attached objects in sequencer do not detach with newly specified "When Finished" property until Sequencer is restarted. Tested in: 4.23.1 CL#9631420 4.25 CL#11062379 ...
NaN is handled differently when clamped on Windows and Android/iOS
UE - Platform - Mobile - Oct 18, 2017NaN (Not a Number) is handled different when clamped on Windows and Android/iOS. If you clamp a NaN (Acheived by -3 ^ 0.2 in the reproduction project) from 0.0 to 1.0 and then print the result, you' ...
Scale with Width on Landscape Splines offsets plane mesh on Z axis
UE - LD & Modeling - Terrain - Landscape - Apr 22, 2015If "Scale with Width" is set on a landscape spline with a plane mesh, the plane will offset on the Z axis. In most other cases, scaling along the z axis does not affect planes. ...
Packaged Game Ensure Crash when GameInstance working with Async loading thread
UE - Foundation - Core - Jul 23, 2019In Engine 4.23 Preview, when AsyncLoadingThread is enabled and GameInstance is loaded from a Blueprint, the Engine will crash. ...
Artifacts in imported GLB and GLTF files
TM - Interoperability - Mar 10, 2025Reported in SF [Link Removed] Client reports that many of their GLB and GLTF files they use appear with visual artifacts when imported to Twinmotion. These artifacts only appear in Twinmotion and n ...
Inconsistent events triggered by FlushProcessedKeys during keyboard hold input
UE - Gameplay - Input - Dec 20, 2024Key repeats from the OS do not affect the EnhancedInput normally, but it causes inconsistent event triggers when FlushProcessedKeys is called with holding a keyboard key down. Removing references t ...
Reset seed on emitter looping not working properly
UE - Niagara - Dec 31, 2019The "Reset Seed on Emitter Looping" has no effect when enabled. Tested in: 4.22.3 CL#7053642 , 4.23.1 CL#9631420 , 4.25 CL#10868506 ...