FILTER_COMMANDLINE_LOGGING cannot be used without forcing UE_COMMAND_LINE_USES_ALLOW_LIST

UE - CoreTech - Jul 30, 2024

There's two ways to affect the commandline in CommandLine.cpp: FILTER_COMMANDLINE_LOGGING - for filtering certain or all args (if left empty) from the log. UE_COMMAND_LINE_USES_ALLOW_LIST - for on ...

Datasmith Direct Link models relocate on sync

TM - Interoperability - Jun 3, 2024

Reported 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 - Anim - Rigging - Control Rig - Dec 9, 2025

The 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 ...

Split pins of Function inputs do not correctly update if variable type is changed

UE - Gameplay - Blueprint - Aug 30, 2017

When using the inputs of a function, splitting a variable and then changing its variable type does not properly update the node as expected. This occurs with any variable type that can be split. Sav ...

Freeze occurs after some time when tick group is set to TG_PostUpdateWork on a class

UE - Gameplay - Nov 21, 2017

Multiple users have reported an issue where their packaged games are freezing after an indeterminate period of time. The reproduction steps and logs of each user are different but the reproduction s ...

Renaming assets keeps the old file

Tools - Feb 2, 2018

There is an issue where renaming assets keep the old files, which can easily occur after renaming files after a lunched project. This issue keeps old versions of files, these files keep in the conte ...

Fix world to meters scale

UE - Platform - XR - Apr 11, 2018

Is 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 ...

Reimporting of skeletal mesh results in a scrambled skeletal mesh

UE - Editor - Content Pipeline - Import and Export - Oct 17, 2025

When 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 ...

[CrashReport] UE4Editor_UnrealEd!UnFbx::FFbxImporter::RecursiveBuildSkeleton()

UE - Editor - Content Pipeline - Import and Export - Jul 30, 2015

This is a common crash affecting users. User DescriptionsJust import a Mesh of Fuse Source Context 624 void UnFbx::FFbxImporter::RecursiveBuildSkeleton(FbxNode* Link, TArray<FbxNode*>& Out ...

[CrashReport] UE4Editor-CoreUObject.dylib!FArchiveAsync2::Serialize() when cooking for iOS on Mac

UE - Platform - Mobile - Jul 27, 2017

This is a Mac cooking for iOS commandlet crash that has occurred occasionally for some users in 4.16. Example Command Line (PII removed)/Users/---/Desktop/---/---.uproject -run=Cook -NoLogTimes -T ...