Unreal Engine Issues
Unreal Engine Issues
Project crashes when auto save completes after copy/pasting emitters multiple times in a system
UE - Niagara - Aug 2, 2018Project crashes when auto save completes after copy/pasting emitters multiple times in a system Encountered same crash testing Blend_Attributes_System and ExpressionsExample_System. Doesn't seem to ...
Cannot interact with the scrollbar at the bottom of the Live Coding Console window
UE - Foundation - Cpp Tools - Live Coding - Apr 18, 2019After completing a build using Live Coding, a horizontal scroll bar appears at the bottom of the Live Coding Console window since some of the lines of text are longer than the window can display. Th ...
Instanced sub-object property values get out of sync between parent and child Blueprints
UE - Gameplay - Blueprint - Jun 17, 2016Also, another, possibly related symptom that should be looked into alongside this: Possibly related: 1. Set InlineObject to null on both character. 2. Assign new Inline Object to InlineObject on Ba ...
ResavePackages commandlet (buildlighting) fails/asserts on reflection captures in non-visible sub-levels
UE - Rendering - Graphics Features - May 13, 2025When building reflection captures through the ResavePackages commandlet, it frequently triggers an ensure inside of ReflectionEnvironmentCapture.cpp. If distributed shader builds start causing prob ...
OCIO + nDisplay not producing expected output in Disguise
UE - Virtual Production - Rendering - Color - Feb 19, 2026Based on [Link Removed] OCIO + nDisplay not producing expected output The issue is just that when using UE 5.6 or later the resulting colour looks off compared to what 5.5 and pevious versions wou ...
Editing the Default Value of a Struct Variable Disconnects Pins in Blueprints
UE - Gameplay - Blueprint - Mar 1, 2016When using a struct in a blueprint, if you go into that struct and alter the default values of one of the variables, any pins that were used relating to that variable are disconnected in blueprints. ...
DefaultEngine.ini Configurable Variable change ignored in Standalone (may be a compilation manager issue)
UE - Gameplay - Blueprint Compiler - Jan 29, 2018If you change a configurable variable's default value in DefaultEngine.ini, the change will be ignored in Standslone mode until you compile and save the variable's blueprint. This causes inconsiste ...
Preinfintiy and Postinfinity settings within the Curve Editor of an Animation can not be changed from Constant
UE - Anim - Runtime - Sep 7, 2022This is a regression tested in //UE4/Release-4.27 CL 18319896 Preinfintiy and Postinfinity settings within the Curve Editor of an Animation can not be changed from Constant. Either by right clickin ...
[MetaSounds][Inputs] - When multiple copies of an input node are on the graph, all connections reconnect to one node when an input is renamed
UE - Audio - MetaSounds - Aug 13, 2022If there are multiple copies of an input on the graph, when it is renamed, all the connections are broken and rerouted to a single node, orphaning the rest on the graph. I believe this may be a dupl ...
Packaging fails with too many instanced static meshes
UE - Graphics Features - Jun 8, 2018Project will fail to package with more than one actor containing ISM Components. From user: "...After some testing I found that it only occurs if there are multiple actors in a map (either of the ...