Unreal Engine Issues
Unreal Engine Issues
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 ...
Problems in skeletal mesh merge
UE - Editor - Content Pipeline - Asset Build - May 10, 2021There are a few issues a licensee has found with the skeletal mesh merge operation. See the UDN for more details and the proposed fixes. Note, the issue with the cloth merge is already logged in a ...
Size input box too narrow in UMG Widget Editor
UE - Editor - UI Systems - Jan 24, 2022Only 2 digits are visible in the size box that holds values between 1.0 and 0. Meaning most values will contain 3 digits. This is different from UE4 where more digits are visible. ...
bIgnoreAllPressedKeysUntilRelease only applies to keys in the previous mapping
UE - Gameplay - Input - Jun 16, 2022This is because the RebuildControlMappings function only checks this flag when you have a mapping that was already added, we should apply this for any new mappings as well. I'll update the repro s ...
shared texture sampler doesn't work in mobile
UE - Platform - Mobile - Jan 5, 2023In mobile preview or android device in 5.1 release, M_SharedTexture_Inst material does not render properly due to exceeded sampler slot limit. there was no problem in 5.0.3 ...
Editor becomes unresponsive when selecting BP_FirstPersonChracter0 while Playing in Editor with specific settings
UE - Editor - Jun 19, 2023This is a regression. Testing //UE5/Release-5.1 CL23901901 When selecting BP_FirstPerconCharacter at run time in a project that has C++, Quality as Scalable, and Ray Tracing enabled the editor free ...
Water body constructor dirties actor
UE - Graphics Tools - Terrain - Water - May 29, 2024Modify gets called from AWaterBody constructor: WaterSplineMetadata->Reset(3); WaterSplineMetadata->AddPoint(0.0f); WaterSplineMetadata->AddPoint(1.0f); WaterSplineMetadata->AddPoint ...
Copy-pasting custom property nodes (ControRig etc.) results in invalid bindings, perf issues
UE - Anim - Rigging - Control Rig - Jul 28, 2025From this UDN: [Link Removed] Suggested fix:Override PostPasteNode to perform the GUID update andAdd validation on load to strip 'invalid' copies that do not correspond to a valid pin input ...
Blueprint PaperTileMap Component not Rendering while in Mobile Preview or Launched on Device
UE - Gameplay - Paper2D - Jun 12, 2015A blueprint with a PaperTileMap component will not render when played through the 'Mobile Preview' or as a packaged project. If the Tilemap alone is dragged into the viewport it renders fine when p ...