Unreal Engine Issues
Unreal Engine Issues
Blueprint Editor Show Grid does not toggle the grid in the viewport
UE - Editor - Workflow Systems - Oct 28, 2020The grid in the blueprint editor is not able to be hidden via the Show Grid flag in the viewport dropdown. This has regressed sometime in //Ue4/Release-4.25 as I cannot reproduce this issue in //UE4 ...
3D Grass may not appear in Path Tracer renders
TM - Rendering - Sep 19, 2025Reported in SF [Link Removed] Path Tracer renders of images with 3D grass may not display 3D grass in the foreground of an image. The 3D grass material will not appear or may appear to cut off at s ...
Warnings displayed when launching the editor in DX12
UE - Graphics Features - Oct 6, 2016Following warning is displayed in the log when launching in dx12:[2016.10.06-22.33.36:185][ 0]LogD3D12RHI:Warning: Root signature created where the root parameters take up 18 DWORDS. Using more tha ...
r.ScreenPercentage.Editor does not function
UE - Graphics Features - Jun 2, 2016Setting r.ScreenPercentage.Editor does not affect the upsampling/downsampling of the viewport in the editor. Regression: YES - the console command correctly adjusted the screen precentage in 4.11.2 ...
Package fails to load due to EditorOnly data when launched onto Mac or Windows
UE - Foundation - Core - Jun 28, 2017LogPlayLevel: QAGame: [2017.06.28-14.09.14:706][ 0]LogLinker:Warning: Unable to load package (../../../QAGame/Content/UMG/UMG_Sprite.uasset). Package contains EditorOnly data which is not supported b ...
Cannot add a new empty group to a Matinee on Mac
Tools - Nov 15, 2017In 4.18, it is no longer possible to add a new empty group to a Matinee on Mac. Instead of asking for a name for the new empty group, the Matinee editor now just displays a small white dot in the Tr ...
(Paper2D) Polygon Collision does not correctly rebuild when using rebuild collision node in packaged game
UE - Gameplay - Paper2D - Nov 29, 2017With tile maps, Polygon Collision does not correctly rebuild when using rebuild collision node in packaged game. This issue does not appear to be a regression. Versions Tested: Issue occurs on all ...
Verify command in CookOnTheFlyServer.cpp causes cook failures for patches based on a previous release
UE - Foundation - Core - Feb 9, 2018A verify command in CookOnTheFlyServer is checking the wrong condition and causing cooking to fail for patches that are based on a previous release or have had something removed from the build. The ...
Blueprint Structure Tooltip Edits Get Discarded
UE - Gameplay - Sep 12, 2018Blueprint Structure tooltip edits get discarded. Current workaround is to make a secondary change that is not needed along with the desired change, Then edit it again to remove the secondary change. ...
"Start Previewing Node" Does Not Work For Post Process Materials
UE - Graphics Features - Oct 1, 2018Using "start previewing node" in a post process material does not work. The preview will only show the final result that is connected to the material attributes. Working as expected in 4.18 CL# 38 ...