Unreal Engine Issues
Unreal Engine Issues
Crash When Loading a SubLevel With HierarchicalInstancedStaticMeshComponent and SphereReflectionCapture via the Levels Window
UE - Graphics Features - Aug 30, 2018The editor crashes when loading a SubLevel with HierarchicalInstancedStaticMeshComponent and SphereReflectionCapture via the levels window. Working as expected in 4.19 CL# 4033788 Found in 4.20 CL# ...
UAbilityTask Out parameters are not parsed properly
UE - Gameplay - Blueprint Editor - Aug 30, 2018A licensee has reported that when creating an Ability Task through a C++ class, the Out parameters for the task do not parse properly. Regression?: No This occurred in 4.19 as well ...
Landscape Hole Error in checked PhysX builds
UE - Simulation - Physics - Sep 4, 2018When using checked PhysX builds, landscapes with holes generate errors when they shouldn't. ...
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 ...
InstallVisualizers.bat does not install debug Visualizers for Visual Studio 2017
UE - Foundation - Core - Sep 24, 2018The InstallVisualizers.bat file for 4.20 does not include a way to install the Visualizers for Visual Studio 2017. With Visual Studio 2017 now the default Windows IDE for the Engine, it may be helpf ...
UK2Node_EnumLiteral always outputs defaulted (0) value if input pin is connected
UE - Gameplay - Blueprint - Sep 28, 2018The reported behavior repros in 4.20 and 4.21, but does not repro in 4.19. Regarding the "Literal Enum" node in blueprints: When an input enum value is connected to the input pin, the output is al ...
Foliage Lightmaps Are Incorrect When Using a Precomputed Lighting Scenario
UE - Graphics Features - Oct 2, 2018Foliage lightmaps will not match properly to the lighting when using a lighting scenario. They will look normal if you select the Foliage tool but in PIE they will still be incorrect. Working as ex ...
Calling LoadLevel within OnLevelShown delegates causes an array modification during range-for iteration assertion
UE - Gameplay - Oct 8, 2018Ranged-Based for in ULevelStreaming::BroadcastLevelVisibleStatus iterates an array which can become modified during execution if new levels are added. ---------------------------------------------- ...
EarlyZPassOnlyMateriaMasking Makes Masked Materials on Particles Flicker When Close to the Camera
UE - Niagara - Oct 12, 2018When "r.EarlyZPassOnlyMaskedMaterials" is enabled, masked materials used with particles will flicker when close to the camera. Found in 4.17 CL# 3658906, 4.18 CL# 3832480, 4.19 CL 4033788, 4.20 CL# ...
Inconsistent Blueprint Instance Physics/Collision edit-ability
UE - Simulation - Physics - Oct 9, 2018For Blueprints with components having collision, the collision profile set in the blueprint seems to determine the edit-ability of many collision/physics properties of the instances. The profiles ef ...