Unreal Engine Issues
Unreal Engine Issues
Cannot save actor after actor component modification, Graph is linked to private object(s) in an external package
UE - Gameplay - Blueprint - Sep 28, 2016Cannot save actor after actor component modification. The user gets the error Graph is linked to private object(s) in an external package ...
When having two viewport panes open in editor, and piloting/unpiloting a camera actor in one pane, will cause the other pane to reset viewport camera orientation.
Tools - Jan 8, 2019Piloting and "Un-piloting" a camera Actor in viewport pane causes other viewport panes to reset its view orientation upon "Un-piloting" of Camera Actor. ...
Changes in Scale are not replicated on the Client through RPCs
UE - Networking - Apr 27, 2015Changes in Scale are not replicated on the Client through RPCs. Location and Rotation are replicated as expected. Reproduced in 4.7.6 binary and Main (//depot/UE4/Promotable-CL-2522625) ...
Niagara Regression - Looping particle with Spawn Burst Instantaneous on time 0.0 flickers for a frame between loops
UE - Niagara - Jul 16, 2025Note: This worked correctly up to UE 5.4, but repros from UE 5.5 up to mainline latest. If a Niagara Emitter is set up with "Spawn Burst Instantaneous" on time 0.0, and the spawned particle(s) have ...
Invalid Operand "WorldPartition" when calling FAutomationEditorCommonUtils::CreateNewMap();
UE - World Creation - Worldbuilding Tools - World Partition - May 13, 2022LogAutomationController: Error: LogEditCondition: WorldSettings - EditCondition attempted to use an invalid operand "WorldPartition". ...
UnrealMatch3 ensures when launching on iOS
Docs - Samples - Aug 21, 2016While running regression pass, found that UnrealMatch3 hits an ensure when user selects to Launch on to iOS device. LogOutputDevice:Error: The ini file '../../../UnrealMatch3/Saved/Config/IOS/Device ...
Split screen - Player 2 doesn't receive input when created with Create Local Player node
UE - Gameplay - Input - Jan 4, 2023This is a regression. Tested in //UE5/Release-5.0 CL20979098. Split screen extra controllers ignored when using Create Local Player node. May just be Enhanced Input related. ...
Ensure occurs when RBAN simulated rigid body approaches UseComplexAsSimple mesh
UE - Simulation - Physics - Character - Jun 30, 2022When a collision enabled RBAN node attempts to collect surrounding meshes, if there is a mesh with UseComplexAsSimple, it will hit the Ensure when cloning a mesh on the task graph thread. Disabling ...
Destructible Event OnComponentFracture fires multiple times when Debris flag is enabled.
UE - Simulation - Physics - Destruction - Jul 15, 2015When using a Destructible that is using the Event OnComponentFracture and the flags for Debris timeout/max separation and Debris Enabled will cause the event to fire for each chunk removed from the ...