Unreal Engine Issues
Unreal Engine Issues
xDatasmith Direct Link models relocate on sync
TM - Interoperability - Jun 3, 2024Reported by multiple users. Models imported through Datasmith Direct Link can be relocated after a sync, despite no edits to the geometry's location in the DCC program. Currently reported for both ...
Provided example Control Rig Python scripts that feature calls to GetControlRigBlueprint need to be updated to GetControlRigAssetInterface.
UE - ACT Character - Control Rig - Dec 9, 2025The unreal.ControlRigContextMenuContext.get_control_rig_blueprint() this function has been deprecated in Unreal Engine 5.7. As a result, the Python scripts included with the Control Rig plugin no ...
Incorrect CRC hash for shared fragments with FInstancedStruct member
UE - Engine Scaling - Mass - Mar 30, 2026User has encountered an issue with shared fragments that contain a member variable of type FInstancedStruct. It appears that UE::StructUtils::GetStructInstanceCrc32() does not correctly compute the ...
Editor Crashes When Reloading Textures in Debug Tools
UE - Editor - UI Systems - Slate - Apr 11, 2016Crash occurs while Playing in Editor and debugging by reloading textures. Occurs for both Mac and PC. Regression: Does not occur in UE4.10 testing on Match 3 ...
[CrashReport] Ran out of memory - FFixedUObjectArray::PreAllocate()
UE - Foundation - Core - UObject - Sep 7, 2017This is a somewhat common crash affecting users in 4.17. Users have not provided any descriptions of their actions when the crash occurred. Source Context 165 if (GWarn) 166 { ...
Fix world to meters scale
UE - Platform - XR - Apr 11, 2018Is changing the world to meters in the current 4.19 AR template project supposed to affect the world, or is world to meters only for VR projects currently? We have project where a client wants us to ...
Construction script does not properly reset array count
UE - Gameplay - Oct 28, 2019It appears that in UE 4.23, some specific arrays in construction scripts are no longer cleared automatically and retain references to TRASH objects from the previous construction script calls. This ...
WildCard Inputs/Outputs Propogate Incorrectly in Macros
UE - Gameplay - Dec 13, 2019When a macro takes in a two Wildcard inputs and two Wildcard outputs connecting a variable to one assigns the value of all the outputs even if they don't connect (check attached image). You can see ...
Syncing changes in multi-user editing tool results in crash
UE - Virtual Production - Tools - Multi-user - Dec 18, 2019When using the multi-user editing tool inside a 4.24 project, persisting changes will sometimes result in a crash. Unable to reproduce the issue. However, the user has reported occasionally re ...
Reimporting of skeletal mesh results in a scrambled skeletal mesh
UE - Editor - Open File Formats - Import and Export - Oct 17, 2025When we reimport our skeletal meshes with updated FBXs, the resulting skeletal mesh is scrambled up. See Scrambled.jpg attached. This does not affect every single reimport but happens randomly. W ...