Unreal Engine Issues
Unreal Engine Issues
Using CustomBrush_Landmass Brush creates an inverted pyramid on the landscape
UE - Graphics Tools - Terrain - Landscape - May 17, 2022When using the CustomBrush_Landmass Brush, clicking the landscape should add a pyramid shape landmass but instead creates a inverted landmass. Regression tested on //UE4/Release-4.27 @ 18319896 Re ...
Missing materials on the rear lights and windows of library vehicles
TM - Content - Oct 24, 2025Reported in SF [Link Removed] The rear light material and window materials on Twinmotion library vehicles are not present on many vehicles in TM 2025.2. Confirmed affected vehicles are in the foll ...
Collision for bsp stays in level after bsp is deleted
UE - LD & Modeling - Modeling Tools - BSP - Jun 30, 2015If a bsp brush is deleted from a level, the level has geometry built, and the user presses play then uses the "show collision" console command, the collision for the bsp wlil still appear. This does ...
User cannot undo the automatic changing of Mobility settings
Tools - Sep 12, 2016When the users causes a component to automatically change its Mobility setting by changing that setting on a parent or child component, undoing that change only affects the manual change caused by t ...
[CrashReport] MetalRHI crash - void FForwardLightingParameters::Set<FRHICommandList, FRHIPixelShader*>
UE - Graphics Features - Jul 20, 2017This is a common crash affecting Mac users in 4.16. User DescriptionsI tried to build the lighting and it keeps crashingWhenever I attempt to build the project or change the preview rendering to IO ...
Text type parameters show the same value after reload in duplicated actor
UE - Gameplay - Blueprint - Jan 4, 2021Issue occurs in both events and functions. Seems like it's only affecting Text, didn't notice this issue for other variable types. The original actor is working as expected. Only the duplicated one ...
Pixelated volumetric translucent shadows
UE - Graphics Features - Aug 17, 2021I narrowed down the issue to the Main call of ShadowProjectionPixelShader, and tested (on 4.26 and 4.27) a combo of different material and light shadow settings, as well as enabling transmission on ...
LDR crashes editor on Mac
UE - Platform - Apple - Oct 14, 2021Summary A licensee has reported a crash with HDR.Details A UDN customer has reported that 4.27.1 still crashes when they attempt to enable HDR on macOS. The report also states that the iOS build cra ...
Restart Player at Transform leaves the character unpossessed, failing to restart the player.
UE - Gameplay - Apr 12, 2022Restart Player at Transform inside of GameModeBase leaves the character unpossessed when called. Repro Rate: 4/4 Tested in //UE4/Release-4.27 @ CL#18319896 and the player character successfully re ...
Editor freezes on selection of Blueprint Components
UE - DEET - EditorPerformance - Apr 29, 2022Editor freezes and stops responding on selection of Blueprint Components; Requiring the editor to be forced closed. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue di ...