Unreal Engine Issues
Unreal Engine Issues
Data like Camera Tracks can get corrupted inside Level Sequences when Undoing some operations
UE - Anim - Sequencer - Jul 22, 2025Camera trucks can get in a invalid state when you undo certain operations. One example would be undoing a camera set that has been added to a camera track. When you undo that operation, other camera ...
Virtual Texture Collection Indexing Not Working
UE - Rendering Architecture - RHI - Oct 30, 2025Textures at an index, other than 0, cannot be sampled from a Virtual Texture Collection in a material. When using the Texture Collection and Texture Object From Collection material nodes, with a Vir ...
Copying local variables from an event graph to a collapsed graph causes missing local variable warnings upon compil
UE - Gameplay - Blueprint - Aug 25, 2015If a local variable is present within an event graph and then copied in a collapsed node, the copied variables will have a warning: "Unable to find local variable with name 'NewLocalVar_0' for Get ...
Reparenting a blueprint loses information created in the blueprint being reparented
UE - Gameplay - Blueprint - Jun 15, 2015If an actor blueprint is re-parented to another actor blueprint, it will lose information in the blueprint even if nothing has been added to the second blueprint that would change the child blueprin ...
Cannot place static mesh in location if foliage mesh is already placed in same location
UE - World Creation - Worldbuilding Tools - Foliage - May 12, 2015If a foliage object is already placed in level at a location, it will delete any static mesh that is placed in the same location. ...
Local variables do not appear in the context menu inside collapsed graphs
UE - Gameplay - Blueprint - May 21, 2015Local variables do not appear in the context menu inside collapsed graphs. They can still be dragged into the graph. Reproduced in 4.8 Preview 3 and Main (//depot/UE4/Promotable-CL-2560501) ...
Crash from FGameplayDebugger when pressing PIE after Dragging PlayerController to Empty Player Component
UE - AI - Jun 16, 2015A crash occurs after dragging an 'Empty Character' actor into the viewport and attempting to add the 'PuzzlePlayerController' as a component by dragging it into the components list via the 'Details' ...
PhysX Crash when spawning Instanced Static Mesh actors at Runtime
UE - Simulation - Physics - Destruction - Oct 13, 2015Bug generated from crash reporter. This crash has been found in 4.7.6 and still occurs in 4.8.3 and 4.9.2 to users. One user in particular still, and he experiences it often. I have not been able ...
While using an Actor Component, Simulate Physics cannot be toggled with a Click Event if Substepping is enabled
UE - Simulation - Physics - Apr 29, 2015While using an Actor Component, Simulate Physics cannot be toggled with a Click Event if Substepping is enabled. If Substepping is off, everything works fine. This seems to only happen if an Actor ...
MOBILE PACKAGING WIZARD cannot locate maps if the project is placed in the default path.
Tools - Sep 29, 2016MOBILE PACKAGING WIZARD cannot find maps when the project's path is located in the default path (C:\Users\User.Account\Documents\Unreal Projects) ...