Unreal Engine Issues
Unreal Engine Issues
Evaluate WPO for Foliage(HISM) is based on Local Space？
UE - Graphics Features - Lumen - Aug 21, 2021Dithered LOD transitions sometimes briefly flicker to the next LOD before fading
UE - Rendering - Graphics Features - Jun 12, 2025When dithered LOD transitions occur, a brief flash of the next LOD level is first shown on the entire mesh after which the current LOD fades to the next (or previous) LOD. The flashing behavior only ...
Custom fallback mesh LODs for Nanite-enabled meshes not working
UE - Rendering - Graphics Features - Sep 15, 2025Creating a custom fallback mesh with LOD for Nanite-enabled meshes with multiple materials, results in mesh LODs with errors. As the number of material sections (material slots) decreases with coars ...
VirtualTextureStreamingPriority cannot be set per TextureLODGroup
UE - Rendering - Architecture - Dec 11, 2025It is currently not possible to set a VirtualTextureStreamingPriority via the TextureLodGroups that are defined in a device profile. ...
UMG curve editor values are set to 0 when dragging a set value
UE - Editor - UI Systems - Jul 10, 2015An example of this issue would be that after setting the color and opacity setting along the time line and then trying to click and drag that key frame it will set the value for the currently select ...
Hierarchy is lost when components are copied from one blueprint to another
UE - Gameplay - Blueprint - Jun 8, 2015If a user has a list of components with a hierarchy, the hierarchy is lost in the target location if they copy the components to another blueprint. ...
World Origin Shifting Rendering Desync On Play
UE - World Creation - Worldbuilding Tools - World Composition - Jan 27, 2020FInternetAddrBSDIPv6::SetIp doesn't handle all valid IPv6 formats
UE - Networking - Sep 29, 2016Currently FInternetAddrBSDIPv6::SetIp(const CHAR* InAddr, bool& bIsValid) does not handle all valid formats of IPv6 addresses. Need to rework the function to be more robust, and properly handle all ...
Crash When server traveling from one level and then back again after calling a multiclass event (using Play as Listen Server)
UE - Gameplay - Blueprint - Apr 20, 2018A crash occurs when switching back and forth between levels when using seamless travel. This happens if a multicast was called and if it contains a member variable. ...
SceneCaptureComponent2D Anti-Aliasing not working unless Post-Processing flag is toggled OFF and back ON again
UE - Graphics Features - Aug 28, 2019SceneCaptureComponent2D Anti-Aliasing does NOT work unless Post-Processing hidden show flag is toggled OFF and back ON again. This state persists only during Editor time. Upon restarting the Editor ...