Unreal Engine Issues
Unreal Engine Issues
Using a Shading Model node set to Unlit results in an invalid material with FromExpression domain
UE - Rendering Architecture - Materials - Feb 29, 2024Create a materialSet its domain to From ExpressionRecreate the node graph as in the screenshot Note that the preview sphere is black. ...
Instanced Static Meshes ignore max World Position Offset Displacement for bounds after UpdateInstanceTransform is called
UE - Graphics Features - Jun 18, 2025When an Instanced Static Mesh Component (ISMC) uses a material with a non-zero Max World Position Offset Displacement, the bounds are correctly expanded at initialization. However, after calling Upd ...
Physics Asset loses skeletal mesh reference when skeletal mesh is moved to another folder
UE - Gameplay - Apr 10, 2015When moving a skeletal mesh from one folder to another will lose the skeletal mesh reference in the Physics Asset. A warning message will appear. Picture attached. James: Do things like FStringAss ...
Child actor component cannot be selected within blueprint viewport
UE - Gameplay - Blueprint - Nov 24, 2015Child actor component cannot be selected within blueprint viewport. The transform can be altered and, if selected within the Components tab, the child actor component can be moved within the viewpor ...
Compile error when opening a project on child blueprint calling parent blueprint event
UE - Gameplay - Blueprint - Sep 8, 2015child blueprints calling functions from parent blueprints generate compile errors upon opening project and pressing compile within the child blueprint. Workaround: Open parent blueprint and comp ...
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 ...
Deleted actors remain in scene outliner
Tools - Mar 14, 2015actors that are deleted via blueprints remain in the scene outliner during PIE Regression: No (Issue was occuring in 4.6)https://answers.unrealengine.com/questions/44271/why-are-destroyed-actors-in ...
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' ...
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 ...