Unreal Engine Issues
Unreal Engine Issues
Creating a new theme is lost once the editor is restarted
UE - Editor - Workflow Systems - Apr 6, 2022Creating a theme is undone when restarting the editor. The .json file seems to become disassociated from the editor, the theme is reset back to the previous theme, and the new theme isn't available ...
Custom fallback mesh LODs for Nanite-enabled meshes not working
UE - Graphics Features - Sep 15, 2025Creating a custom fallback mesh with LOD for Nanite-enabled meshes with multiple materials, results in mesh LODs with errors. As the number of material sections (material slots) decreases with coars ...
Sizes of widgets are shown as their size before DPI scaling is applied after changing ScreenSize
UE - Editor - UI Systems - Dec 1, 2015If the user sets the screen size to iPhone 4s (640 x 960) A widget that is "Fullscreen" will be roughly 1080 by 1620 in size (as reported by the details panel). This is the size before the DPI scali ...
The origin appears to shift for 3D widgets when the anchors (in the widget blueprint) and the pivot (in the widget component) are changed
UE - Editor - UI Systems - Nov 17, 2015If The user is using an anchor that is not the top left and then changes the pivot of a widget component the result is a 3D widget that has an offset origin making it very difficult to interact with ...
Multi Line Trace by Channel includes Actors with Overlap collision in the Out Hits array
UE - Gameplay - Apr 13, 2015Multi Line Trace by Channel includes Actors with Overlap collision in the Out Hits array (but does not indicate a True Return Value). The two returns match with Ignore and Block collision settings. ...
Printing the result of the 'Get Move Ignore Actors' node will crash the editor
UE - Gameplay - Blueprint - May 6, 2015Printing the result of the 'Get Move Ignore Actors' node will crash the editor. The Licensee found the issue while exploring a workaround for this JIRA:https://jira.ol.epicgames.net/browse/UE-14734 ...
HLOD actor is not popping in as expected when zooming out in the viewport
UE - World Creation - Worldbuilding Tools - HLOD - Jan 12, 2017This is a regression from 4.14.3 at CL 3251583 ...
Texture Property Node Returns Unexpected Values For Texture Object With Render Target Input
UE - Graphics Features - Feb 7, 2017The texture property node returns incorrect values for texture objects that have a render target as its input. The correct value will be returned if a normal texture is used for the input instead. ...
Unable To Add More Than One Element To Default Values For Maps In Blueprint
UE - Gameplay - Blueprint - Feb 13, 2017When adding new elements to a Map in blueprints it will return the error "Cannot add a new key to the map while a key with the default value exists". This is because it currently won't increment the ...
[CrashReport] UE4Editor_UdpMessaging!FUdpMessageProcessor::HandleSerializedMessageStateChanged() [udpmessageprocessor.cpp:548]
UE - Virtual Production - Nov 21, 2017This is a common and longstanding crash that has occurred since at least 4.11. User DescriptionsI was just sitting around and it autosaved no source context available ...