Unreal Engine Issues
Unreal Engine Issues
FBX & OBJ Files no longer Import with their UVs Depending on Software Used
UE - Editor - Content Pipeline - Import and Export - Sep 6, 2016Importing an OBJ file no longer imports the UVs. Test asset included for OBJ and FBX version of the same file. Added Test FBX from SketchUp Tested with: 4.12.5 CL-3039270 - Working 4.13.0 CL-31 ...
Tessellation not working properly on Vulkan
UE - Graphics Features - Jan 25, 2018When a user launches content examples with -vulkan tessellation will not be working. Everything tessellated will appear as if it has no tessellation. This issue is also occurring in 4.18 ...
Foliage instances don't move with a static mesh when it is shared between two foliage actors
UE - World Creation - Worldbuilding Tools - Foliage - Apr 26, 2023From Licensee: The bug comes from the call of the function `FoliagePartitioningUtils::Update` in the method `AInstancedFoliageActor::MoveInstancesForMovedComponent`. When the function `FoliageParti ...
Disabling collision of an actor after an overlap event will cause the event to fire twice
UE - Gameplay - Sep 3, 2015Disabling collision of an actor after an overlap event will cause the event to fire twice This is working properly in 4.10-2674146 User Description: Calling on "Set Actor EnableCollision" or "Set ...
Distance Field Mesh default resolution artifacts on some shape meshes
UE - Graphics Features - Feb 10, 2016Distance Fields generated for the 4 basic static mesh assets in the modes panel appear to have artifacts or low resolution. This is only affecting certain shapes that I can see. Adding in assets fro ...
[CrashReport] Deleting pins on Switch on Gameplay Tag Container node can cause a crash
UE - Gameplay - Blueprint Editor - Mar 15, 2017When adding/removing pins on a Switch on Gameplay Tag Container node, it can cause a crash. There are multiple ways to get this to happen when deleting pins, the order given in the reproduction step ...
Deferred decal does not display when running GTAO.
UE - Graphics Features - Mar 4, 2020Deferred decal does not appear if GTAO is enabled. ...
Enhanced Input duplicately fires input event when used in Widgets.
UE - Gameplay - Input - Jun 9, 2023When creating a UserWidget and creating a process to receive input events with Enhanced Input, input events may be generated multiple times in duplicate. To reproduce this problem, create a Widget a ...
Material Particle SubUV Sample does not work with Tex Object
UE - Rendering Architecture - Materials - Aug 29, 2025The Particle SubUV Sample node uses its own texture object reference instead of the one provided by the texture object node. ...
TargetArray nodes are reported as invalid if played in Standalone mode but not in PIE
UE - Gameplay - Blueprint - Feb 20, 2015TargetArray nodes are reported as invalid if played in Standalone mode and the blueprints they are contained in are not rendered. Playing in PIE however works correctly and all blueprints are rende ...