Unreal Engine Issues
Unreal Engine Issues
Animation Orientation does not Auto-Convert to UE4 Coordinates when Reimporting
OLD - Anim - Nov 23, 2015Animation orientation does not auto-convert to UE4 coordinates when reimporting the same way it does when importing the same animation as a new import. In other words, a run animation generated from ...
[AI] Navmesh does not get built inside of navmesh bounds that is in a non-activated data layer
UE - AI - Navigation - Dec 13, 2022WP navmesh generation does not appear to work if a navmesh bounds volume is in a data layer. The navmesh will build if the data layer is activated when the build paths is started, but it will not lo ...
Anim Notify blueprints are included in packages when not referenced
UE - Foundation - Core - Cooker - Sep 17, 2018Anim Notify Blueprints are included in Packaged builds of the editor even if they are not referenced. This does not occur with other Blueprint classes, such as Actor, although it may with some other ...
'Get Distance Along Spline At Spline Point' Causes Crash
Tools - Jul 28, 2018User reports that the reason for the crash is that because UpdateSpline is false on the AddSplinePointAtIndex blueprint node, this line is never called [ReparamTable.Points.Reset(NumSegments * Repar ...
Dithered LOD transitions do not work when the camera's field of view changes
UE - Graphics Features - Jun 12, 2025Dithered LOD transitions do not work when changing the camera's field of view and cause artifacts when both the FOV and camera distance to the object are changed simultaneously. ...
Illegal Else Without Matching If
UE - Simulation - Physics - Feb 3, 2017Looks like there's a missing if/else pair in BodyInstance.cpp ...
Override Attenuation Can't be Unchecked When Audio Component Added to Blueprint and Blueprint Attached to Actor
UE - Audio - Dec 20, 2017Checking Override Attenuation in Details < Audio Component < Attenuation disables settings that further adjust the Attenuation. Such as: Attenuation Air Absorption, Attenuation Listener Focus, Atte ...
Landscapes cause Vulkan crash related to GRHISupportsAttachmentVariableRateShading
UE - Rendering Architecture - RHI - Nov 7, 2022Binary (Installed Build)//UE5/Release-5.1 @CL22986940 I encountered this same crash when creating a landscape twice, but was not able to consistently reproduce it with those steps. I figured out th ...
“Receives Decals” is not respected on Procedural Mesh Component
UE - Graphics Features - Oct 14, 2022(Enduring Games) I investigated it and found that the following primitive data flag test in BasePassPixelShader.usf fails: (GetPrimitiveData(MaterialParameters).Flags & PRIMITIVE_SCENE_DATA_FLAG_DE ...
When a Niagara System has SimTarget set to GPUCompute Sim, CameraQuery is only returning data from the Player0 camera, ignoring the PlayerControllerIndex.
UE - Niagara - Nov 8, 2024When a Niagara System has SimTarget set to GPUCompute Sim, CameraQuery is only returning data from the Player0 camera, regardless of PlayerControllerIndex. The expected behavior would be to have the ...