Unreal Engine Issues
Unreal Engine Issues
Baking lighting on Nanite landscape crashes the editor
UE - Graphics Features - May 23, 2024When static lighting is baked using CPU lightmass for a nanite-enabled landscape it causes an editor crash with this assert: ...\Lightmass.cpp] [Line: 546] Attempting to add the same material twice ...
Add Substrate Material Support to Lumen Performance Overview
UE - Graphics Features - Substrate - Feb 10, 2025There is a discrepancy when inspecting Substrate materials in the Lumen Performance Overview. Compared to viewing non-Substrate materials the overview show all surfaces in red indicating that Lumen ...
Additives using Frame From This Animation as the Base Pose Type fail to retarget correctly
UE - Anim - Rigging - Retargeting - Feb 13, 2025Additive animations that use a frame from their own sequence as a base pose are initially broken when retargeted. Users have to refresh the properties that select the base pose in order to fix the ...
DistanceToNearestSurface node does not work when r.DistanceFieldAO is disabled
UE - Rendering Architecture - Materials - Jul 16, 2025The problem seems to be that the bUsesGlobalDistanceField flag in the ShouldPrepareGlobalDistanceField() function checks for usage on the material, but it doesn't seem to take effect. The material u ...
Crash When Changing to Landscape Paint Tool With a Material Function for the World Position Offset of the Landscape Material
UE - Graphics Features - Feb 25, 2019Crash on switching to landscape/paint tab when using a landscape material that has a material function hooked onto the WorldPositionOffset. Working as expected in 4.21 CL# 4753647 Found in 4.22 CL ...
Importing an FBX twice will cause a crash
UE - Platform - Linux - Apr 9, 2015When importing an FBX into a project if the "Import" option is chosen rather than "Import All" then importing the same FBX a second time will cause the editor to crash. ...
Starter Content folders return to content browser after being manually deleted
Tools - May 20, 2015If Starter Content is added to a newly created project and then the Starter Content is deleted, upon re-opening the editor the Starter Content files will return to the Content Browser. Workaround: ...
Array node input changes to pass by reference when editor is closed and re-opened
UE - Gameplay - Blueprint - Mar 23, 2015Closing and re-opening the editor changes the input element on add array nodes to a pass by reference. Update: This also occurs on Set Array Elem node Item output. ...
Expand Node on a Function node deletes the Function node
UE - Gameplay - Blueprint - Mar 13, 2015Expand Node on a Function node deletes the Function node. If the Function node is part of a group of nodes collapsed into a function, expanding that new function node will return all nodes except th ...
Custom lighting channels ignored when object culled in stereoscopic
UE - Platform - XR - Apr 14, 2016When a light that uses lighting channels is only visible in one view during stereoscopic rendering, it affects the default light channel instead of the assigned one in the view that it's not visible ...