Blueprint needs to be compiled if another blueprint sharing an interface is compiled

UE - Gameplay - Blueprint - Aug 29, 2017

Blueprint needs to be compiled if another blueprint sharing an interface is compiled Regression: This does not happen in 4.16 ...

SSR not rendering correctly in SM4 Preview

UE - Graphics Features - Sep 20, 2017

This is a regression from 4.17.2 and you do not need to be in PIE to see the effect. This is not seen in Shader Model 5 ...

Unreal crash on STEP file datasmith import

UE - Editor - Content Pipeline - Datasmith - Importer - May 9, 2018

Unreal Crash on .STEP file using the  Datasmith importer. Works fine in 4.19.2  ...

Mobile VR - Foliage (HISM) crash

UE - Platform - XR - Jun 7, 2019

HISMs cause mobile VR app to crash. Confirmed in 4.23 MAIN @ CL 6829265 ...

Grass does not show up when I override the Material of LandscapeComponent.

UE - Graphics Tools - Terrain - Landscape - Sep 8, 2021

Regression checked in //UE4/Release-4.26.2 CL 15973114 the issue is not reproduced thee ...

DefaultBackBufferPixelFormat 3 washes out slate + scene

UE - Editor - Feb 16, 2022

Typical view when setting is 4:[Link Removed] Problematic view when setting is 3:[Link Removed] ...

Crash when fast moving Character objects has Teleporting enabled

UE - Simulation - Physics - Character - Nov 28, 2022

Reproduced 3/3 times. Issue does not occur in //UE4/Release-4.27, so Confirmed Regression. ...

ToString() from a StringTable entry now returns <MISSING STRING TABLE ENTRY>

UE - Editor - UI Systems - Localization - Apr 10, 2024

This is a regression from 5.3 that has been fixed in Main (32476819, for 5.5), but needs merging into 5.4. ...

All Megascan asset libraries are missing

TM - Core - Oct 15, 2025

All Megascans assets no longer appear in Twinmotion 2025.2 hotfix (46767548). Other libraries do not appear to be affected. ...

FollowHmdOrientation is no longer an available option in the player camera manager blueprint

UE - Platform - XR - Feb 18, 2016

Users are having issues after upgrading their project to 4.11 due to the missing option of FollowHmdOrientation in the Player Camera Manager. ...