Unreal Engine Issues
Unreal Engine Issues
Nanite mesh polygons disappearing when using masked opacity with vertex color in 5.4
UE - Graphics Features - Nanite - Jul 24, 2024In 5.4.3, a nanite enabled mesh with a material that takes its vertex color (R) and uses it as the opacity mask output in a masked blend mode material, causes the mesh to have disappearing polygons ...
Xcode 8.3.2 fails to successfully build 4.15.1 from source code
UE - Platform - Apple - May 2, 2017Attempting to build 4.15.1 from source code using Xcode 8.3.2 currently results in the build failing due to warnings that occur in fbxsdk, AlembicImporter, and MetalRHI. ...
Asset Manager settings that worked in 4.26 now have extra invisible broken types
UE - Core - Data Pipeline - Cooker - Sep 23, 2021For 4.27/5.0 (as part of [Link Removed] Closed ) we changed the asset manager's settings to be a key-indexed config array wh ...
Launcher and Editor context / dropdown menus do not display correctly on upcoming Windows 10 build
UE - Editor - UI Systems - Slate - Oct 3, 2016A few users using the Windows 10 Insider Preview have found that after a certain point in the Prerelease builds, starting at 14915 it seems, the Unreal Editor and Epic Games Launcher context menus h ...
[Windows 10] Hitting the Windows key while in fullscreen summons an invisible but still interactive Start menu
Tools - Feb 1, 2018On Windows 10, pressing the Windows key in a fullscreen UE4 application summons the Start menu beneath the application. However, the Start menu still receives input, which can cause applications to ...
Editor crashes if an interface array variable is reset in the Detail's Pane
UE - Gameplay - Blueprint - Apr 27, 2016The editor will crash if an array of interfaces is reset using the "reset values" button (yellow arrow) in the Detail's Pane of the editor. Frequency: 4/4 Crashreporter: N/A Regression? (No), is ...
Migrating a soft reference in a struct from 4.17 to a newer version of the engine results in the variable being changed to an integer
UE - Gameplay - Blueprint Editor - Mar 5, 2018When migrating a struct with a soft reference from 4.17 (or older) to a newer version of the engine, the soft reference will have it's default value converted to an integer after a new member variab ...
Crash when removing cloth apb's assigned to asset
UE - Simulation - Physics - Character - Apr 27, 2016When removing already assigned cloth asset from a skeletal mesh it will crash the editor. I was able to reproduce this with the Owen asset from Content Examples, but was unable to get it to work fro ...
Editor running with "DebugGame Editor" configuration fails to launch (This happens only on 4.21 via Launcher)
UE - Foundation - Cpp Tools - Nov 20, 2018This happens only on 4.21 via Launcher. UE4 editor running with "DebugGame Editor" configuration fails to launch The error log is below. ERROR: System.IO.DirectoryNotFoundException: Could not fin ...
Refraction does not display properly on Android devices
UE - Platform - Mobile - Apr 2, 2019A user has reported that Refraction does not affect Translucent or Masked materials at all on Android. It is also limited in how much it affects Opaque materials. Regression?: No This has been test ...