Unreal Engine Issues
Unreal Engine Issues
Instanced Subobjects on Children BPs point to Parent BP's instance if both are loaded when creating the object
UE - Gameplay - Blueprint - Jun 27, 2018The Instanced Subobject values for the Child_BP are same as what the Parent_BP subobject values are changed to before compile and saving both Blueprint Objects. Tested in 4.18.3 (CL-3832480), 4.19. ...
When Packaging a Blueprint Nativized Game, Child Actor BeginPlay is ignored and Parent BeginPlay is triggered instead
UE - Gameplay - Jul 5, 2018In a Blueprint Nativized Packaged Game a child Blueprint will trigger its parent logic instead of its own when it is called. This was reported in 4.20 Preview 5 (CL-4173640). This issue has been r ...
Copying an instance of a blueprint actor that has an extra, non-default element in an array does not copy that extra element
UE - Gameplay - Blueprint - Jul 16, 2018Copying a blueprint instance that has an array does not copy any elements added to that array directly on the instance and only copies the blueprint's default array elements This worked in 4.13 and ...
IsTraceHandleValid with default FTraceHandles has unexpected behavior on the first frame
UE - Simulation - Physics - Sep 18, 2018Because both FWorldAsyncTraceState's CurrentFrame and FTraceHandle are default initialized to 0, on the first frame, if a new Asnc Trace starts all default FTraceHandles will reference the same (now ...
"Failed to find object 'Class None'" in project log after creation
UE - Foundation - Core - Nov 17, 2014Users reported seeing the line "LogUObjectGlobals:Warning: Failed to find object 'Class None.'" in the Output log after creating a project. I was able to confirm in a new blank code project without ...
Execution reroute nodes become wildcard reroute nodes when creating a second reroute node off the same execution pin
UE - Gameplay - Blueprint - Sep 21, 2015Execution reroute nodes become wildcard reroute nodes when creating a second reroute node off the same execution pin. Note: this does not appear to affect their functionality as execution reroute no ...
Map load stalls in texture streaming code
UE - Graphics Features - Jun 13, 2017A change was made to AActor.GetComponents which appends the results instead of resetting the output array. This seems to only impact 2 places in the code, and has a big side effect in the texture st ...
Materials on deleted children are applied to camera
UE - Gameplay - Blueprint Editor - Nov 28, 2017Materials on deleted children are applied to the camera when inside of an actor blueprint. This issue does not appear to be a regression. Versions Tested: Issue occurs in all versions Tested 4.16.3 ...
Enable Per Poly Collision setting in skeletal mesh doesn't apply when adding mesh to level
OLD - Anim - Nov 30, 2017On a skeletal mesh, there is a setting under the Asset Details for "Enable Per Poly Collision". This check box can be checked, but the setting is not kept when the skeletal mesh is added to the leve ...
Reroute Node Breaks Link in Material Editor When Used with Material Function
UE - Rendering Architecture - Materials - Nov 30, 2017Adding a reroute node in the material editor between a texture object and a material function breaks the link and the texture object is no longer applied. Adding a reroute node into a spline that d ...