Unreal Engine Issues
Unreal Engine Issues
Interface Message Call does not work correctly with ExpandEnumAsExecs meta specifier
UE - Gameplay - Blueprint - Jan 18, 2018When using ExpandEnumAsExecs for the execution of a BlueprintImplementableEvent in a C++ interface, if the interface function is called by message, the result will always be as though you executed t ...
Baked materials containing Texture Object are black
UE - Graphics Features - Apr 9, 2019Using a texture object in material when creating a baked material will result in black material. Confirmed in 4.23 MAIN @ CL 5806859 User also reports "this also applies to the material as seen by ...
Connection is broken between Custom event and Collapsed Graph, which is promoted to Macro
UE - Gameplay - Blueprint - Oct 8, 2020When user promotes collapsed graph that has connection to custom event to macro, connection between that custom event and new macro is brokenThis is not the case when directly collapsing selected no ...
Scaling sphere with gizmo causes it to not work with line trace
UE - Editor - Workflow Systems - Mar 16, 2021Changing the scale of an actor with the level editor gizmo follows a very different codepath than changing it via the details panel. A side effect of this seems to be that line traces will no longer ...
Renaming a level containing Text3DComponent can cause crash
UE - Virtual Production - Jan 6, 2023BuildTextMesh function queued as AsyncTasks may be called during saving (renaming) a level containing Text3DComponents. The following workaround fix the problem. void UText3DComponent::BuildTextMe ...
Draw Material To Render Target Inverting Alpha Masks
UE - Graphics Features - Aug 5, 2016When using the new Draw Material to Render Target function in conjunction with a Material using a masked opacity channel, the render texture is inverted. See attached images for reference. As a not ...
Instanced meshes velocities fix
UE - Graphics Features - Sep 21, 2016"We've been able to enable velocity rendering when using instanced rendering. However, by looking at the generated vertex shader the computation of the previous position seems to be incorrect: flo ...
Print String on Event Tick not working as expected with Cinematic Camera Actor in Blueprint
UE - Anim - Sequencer - Sep 29, 2016Print String does not persist when called on Event Tick within a Cinematic Camera Actor Blueprint. This could be problematic if users have a cinematic camera in their blueprints and using Event Tic ...
AI MoveTo Blueprint node will zero velocity on Pawn when called, causing a freeze if the Pawn is already moving
UE - AI - Oct 4, 2016AI MoveTo Blueprint node will zero velocity, causing a stop when a new destination is set if the Pawn is currently moving. Regression: Yes Worked: 4.12.5 (CL 3039270) Broken: 4.13.1 (CL 3142249) F ...
Blocking Volume Not Displaying Properly in Player Collision Mode
Tools - Oct 17, 2016The licensee has stated that convex mesh generation is failing in KAggregateGeom.cpp from the function KConvexElem::HullFromPlanes. Here is the code snippet they provided: if(!Polygon.Split(-FVecto ...