Unreal Engine Issues
Unreal Engine Issues
Using -90 for New Relative Rotation on the Y axis causes sporadic behavior
UE - Gameplay - Feb 20, 2019Setting up New Relative Rotation with some Static Mesh Actors in the Level Blueprint will have strange results if -90 is used in the Y Relative Rotation. Changing off of -90 will result in normal be ...
Actor loses attach component when parent actor goes in and out of relevancy
UE - Networking - Jun 17, 2019As described in the linked UDN, non-replicated components aren't being hooked up properly after an actor goes out & back into relevancy. The proposed fix sounds correct, calling MoveMapedObjectToUnm ...
USkinnedMeshComponent::PredictedLODLevel can be set below MinLOD
UE - Anim - Rigging - Aug 12, 2019Within USkinnedMeshComponent::UpdateLODStatus_Internal, if the USkinnedMeshComponent does not yet have a MeshObject, MaxLODIndex will be left as 0 and as a result PredictedLODLevel will be set to 0 ...
Flickering artifacts are rendered when using Sky Atmosphere Component with Vulkan
UE - Rendering Architecture - RHI - Jul 16, 2020Rendering the SkyAtmopshere component using Vulkan with and without Vulkan (SM5) enabled causes artifacts to appear on screen on Windows and Linux. This was reported and tested in 4.25.1 (CL-135 ...
The GetCombinedForces put out wrong value when the vehicle is reversing
UE - Simulation - Physics - Aug 19, 2022Reproduced 3/3 times. A similar bug occurred with PhysX ([Link Removed]) Check the function: FVector FSimpleAerodynamicsSim::GetCombinedForces(float VelocityIn) if the velocityIn is negative, th ...
Engine freezes when Level Sequence format is in seconds
UE - Anim - Sequencer - May 22, 2023When using the jumpbox with a sequence that is in seconds (not fps) the engine will freeze. This issue is occurring in Binary //UE5/Release-5.2 @ CL 25360045 This issue is occurring in Binary //UE ...
Within Water Body Custom setting the Water Mesh Override to a Nanite mesh causes a crash
UE - Graphics Tools - Terrain - Water - Jun 28, 2023This is not a regression. Tested //UE5/Release-5.1 CL23901901 Within Water Body Custom setting the Water Mesh Override to a Nanite mesh causes a crash. This seems to be the case with any Nanite ena ...
Non-edit layers landscape don't work adequately with Nanite landscape while painting
UE - Graphics Tools - Terrain - Landscape - Oct 24, 2023Result : while displaying the Nanite version of the landscape, the paint layers behave erratically (see video : [Link Removed]) If rebuilding the Nanite data, the bug gets fixed until the user sta ...
Regression: FGameplayTag and FGameplayTagContainer pin value modification is not undo/redoable
For nodes with an FGameplayTag or FGameplayTagContainer pin, when changing the tag value (Pin->DefaultValue) and triggering Undo/Redo, the pin modification is not undone. Rather, it undoes the previ ...
ExportMaterialUVDensities() gets the incorrect value where the alpha channel is referenced
UE - Rendering Architecture - Materials - Apr 16, 2024ExportMaterialUVDensities() gets the incorrect value where the alpha channel is referenced (e.g. RegisterIndex of the texture is [3] or [7]) because FMeshRenderer::RenderMaterialTexCoordScales() use ...