Unreal Engine Issues
Unreal Engine Issues
Water tiles flicker in and out of visibility with instanced stereo enabled.
UE - Graphics Features - Jun 16, 2025Water tiles flicker in and out of visibility when playing in VR with instanced stereo enabled. Requires instanced stereo rendering to be enabled (does not require forward shading to be enabled) Must ...
Lumen reflections break when the normals don't match the pixel depth information.
UE - Graphics Features - Lumen - Oct 23, 2025Lumen Reflections can leave black spots in chrome materials with strong normals. Also tested on UE 5.5, CL: 41545209 and UE 5.6, CL: 45232827 ...
Adding to Struct causes 'Inappropriate Outermost' warnings
UE - Gameplay - Blueprint - Jun 2, 2015Adding to Struct causes 'Inappropriate Outermost' warnings to be spammed to the Output Log ...
Actors re-scale to original size when attached to other actors
UE - Gameplay - Nov 21, 2014Actors rescale to their original size when placed in level then attached to another actor. ...
If PIE is paused using the 'Pause key', the Pause or Resume buttons on the toolbar will no longer start PIE
Tools - Feb 5, 2015If PIE is paused using the 'Pause key', the Pause or Resume buttons on the toolbar will no longer start PIE. You have to make sure that the icon is toggled to Pause, select the viewport, and then p ...
UnrealCEFSubProcess requires Visual Studio 2013 to be compiled
UE - Foundation - Cpp Tools - UnrealBuildTool - Oct 21, 2016When trying to build the entire engine solution or UnrealCEFSubProcess directly, Visual Studio 2013 is required to be installed for UnrealCEFSubProcess to complete successfully. There is also an err ...
Changing code based component category causes component to become ineditable in blueprints
UE - Gameplay - Blueprint - Mar 27, 2015When a component written in code has it's category setting changed in blueprint the rest of the details for that component will not be editable once the component is deselected and reselected. ...
Switch on custom enum causes compilation errors after Hot Reload
UE - Foundation - Core - Sep 28, 2015If the project is hot reloaded while a Switch on Enum is inside of a blueprint which is switching on a custom enum, the switch will become corrupted. It changes the 'selection' pin to take a Byte pa ...
Phaser module is malfunctioning
UE - Audio - Apr 9, 2019The phaser module that is part of the new Audio Engine causes audio from a Sound Cue to mute after playing for one second. The user states that the issue comes from the Phaser.cpp file producing a N ...
Crash when quick binding a function in a class that extends LevelSequenceDirector
UE - Anim - Sequencer - Sep 16, 2020The purpose was to create a Level Sequence Director inheritance class so that the same event could be reused in multiple sequencers. Attempting to quick-bind this base Level Sequence Director event ...