Unreal Engine Issues
Unreal Engine Issues
Cannot stop/pause audio tracks in UMG animations
UE - Anim - Sequencer - Sep 20, 2016Users cannot stop/pause audio tracks in UMG animations. The sound track cannot be manipulated using the animation nodes given in UMG ...
Use Viewport's BackBuffer as Pixel Shader's input texture fails on Android
UE - Platform - Mobile - Oct 20, 2016UDK Link: link title In this project, they need to get the BackBuffer(including UMG), and use this BackBuffer to do some post-processing. So follow the code in FViewportSurfaceReader :: ResolveRende ...
Categories do not save within Widget Blueprints after compiling
UE - Editor - UI Systems - Feb 13, 2015If a variable is moved to a category outside of the default and then the user compiles the blueprint then the category will be erased and the variable will be put back in the category it was origina ...
Execution Doesn't Resume When Hitting BT Task Breakpoint and Trying to Resume in the Behavior Tree
UE - AI - Oct 6, 2017When a breakpoint is hit in a BT Task Blueprint, execution will not be resumed if you attempt to do so from the Behavior Tree that is running the BT Task. This will cause a crash if executed in the ...
UI transparency breaks when dragging a game window around the screen
UE - Editor - UI Systems - Nov 20, 2017When a game window launched from UE is moved around the screen, any transparent elements on the screen will turn fully opaque. The loss of transparency also causes some text to become blurry. This d ...
Widget interaction component appears to stop working after entering a physics volume
UE - Editor - UI Systems - Aug 24, 2016Widget interaction component appears to stop working after entering a physics volume. A Physics Volume appears to deactivate the Widget interaction component ...
Reparenting Blueprint causes unmodifiable event dispatchers
UE - Gameplay - Blueprint - Feb 11, 2016Reparenting a blueprint to another blueprint that contains an event dispatcher with the same name as an event dispatcher in the parented blueprint shows warnings in the child blueprint and prevents ...
Packaging failed after create EditorUtilityBlueprint asset inherited EditorTutorial class
UE - AI Workflows - UI Systems - Oct 14, 2021Whenever creating the EditorUtilityWidget asset with EditorTutorial as the parent class, the packaging will fail. If the tutorial is not launched the package will succeed. But launched, it will fail ...
Material picking of Nanite meshes with multiple sections not working
UE - Rendering - Graphics Features - Nanite - Nov 24, 2025Picking a material of a section of a Nanite enabled mesh will not work correctly, while the same picking logic works fine for non-Nanite meshes. On Nanite meshes, the reported section index seems to ...
Widget Components set to screen space do not render in the correct position with low engine scalability settings after upgrading to 4.8 from 4.7
UE - Editor - UI Systems - Jun 29, 2015I widget component that has been set to show in screen space will not render in the correct position of screen. It will be offset. This appears to happen after a project has been upgraded from 4.7.6 ...