Unreal Engine Issues
Unreal Engine Issues
Packaged Dedicated Server will not regenerate navmesh around instanced mesh
UE - AI - Jun 6, 2019The foliage instanced mesh, as well as ISM and HISM components both appears to be unable to export navmesh data for generation once we introduce a change in the contents. This error only shows up in ...
Sequencer bindings are lost when creating Sequence Player after loading a Sublevel
UE - Anim - Sequencer - Jun 26, 2019Sequencer bindings are lost when creating Sequence Player after loading a Sublevel using LoadLevelInstance. This was reported and tested in 4.21.2 (CL-4753647). This was reproduced in 4.22.3 (CL-7 ...
Niagara Sample Static Mesh. Source Not Working
UE - Niagara - Jul 7, 2019Static meshes are not rendered as particles when using the Static mesh module in Niagara and setting its source to a static mesh in the scene. Tested in 4.21.2 (CL - 4753647), 4.22 (CL - 7053647), ...
When setting in PreviewGameLaunguage, the package application always adds "culture" to the argument
UE - Editor - UI Systems - Localization - Nov 12, 2020Whenever packaging project from Launcher with a PreviewGameLanguage set, the culture="preview language" is added to the UE4CommandLine.txt file. Can avoid this issue by setting "None" in PreviewGam ...
WaitMutex behaves poorly when there are casing differences in the same path
UE - Foundation - Cpp Tools - UnrealBuildTool - Jan 5, 2021The proposed solution here is to make the casing of the path provided to the hashing function for the mutex consistent with something like:publicstatic string GetUniqueMutexForPath(string Name, stri ...
Adding Components via Editor Utility Widgets does not add component to Details panel
UE - Framework - Blueprint Editor - Nov 14, 2022Using the Editor Utility Widget to add components to objects in UE does not appear to function as expected. I reproduced this 8/8 times in UE 5.1, 5.0, and 4.27, confirming that this is not a regres ...
Cloth collisions thickness doesn't scale with the character.
UE - Simulation - Physics - Character - Jan 10, 2023Character's clothes bubble up as their scale goes down due to the collision thickness not being correctly scaled. ...
Display Texture Atlases in Widget Reflector displaying incorrect tooltips
UE - Editor - UI Systems - Slate - Aug 3, 2023Tooltips within Page 1 of the Texture Atlas Visualizer in Widget Reflector are displaying the incorrect asset. This issue is occurring in Binary //UE5/Release-5.3 at CL 26560699 This issue is occur ...
Rect light artifacts from NaN pixels on surfaces that are coplanar with light position
UE - Graphics Features - May 10, 2024Rect lights cause artifacts (nan pixels) on pixels of surfaces that are coplanar with light position. In RectLight.ush, in RectIrradianceLambert, at line 106, c30 is -1, so rsqrt(0) causes a nan to ...
Lumen Reflections in Stereo are broken after Nvidia GPU Driver Update
UE - Platform - XR - Jul 29, 2024After updating the NVidia graphics driver to v.552.74+, reflective/mirror materials appear broken and render with black and white lines in VR mode if they are in a level with a Post Process Volume w ...