Unreal Engine Issues
Unreal Engine Issues
SubobjectDataSubsystem functions do not show up in blueprint editor.
UE - Gameplay - Blueprint - Apr 15, 2024Licensee was not able to access SubObjectDataSubsystem functions from their blueprint editor, as the functions (such as "GatherSubobjectDataFromInstance") did not show up in the right-click menu and ...
Vector VM - Crash / memory stomp when using > 255 external function calls
UE - Niagara - Aug 12, 2025The Vector VM has only every supported a byte's worth of external function calls, when we blew the limit it would index into the incorrect VM call. The new VM will also overwrite memory when exceed ...
Blueprint array nodes do not display comments
UE - Gameplay - Blueprint - Mar 6, 2015When you create an array node within a blueprint and add a comment to it, it doesn't show up. This includes the 'add' or 'remove' nodes that are pulled from the original array node. This seems to o ...
LIVE: Editor crash on open if saved with detached viewport and sky light in level.
UE - Graphics Features - Oct 21, 2014If there is a sky light in a scene and the viewport is detached and closed prior to saving, the editor will crash when trying to reopen the project. Crash Reporter: 431802 ...
Uncompressed Lightmaps rendering incorrectly in HTML5
UE - Platform - Mobile - Mar 25, 2015When using uncompressed Lightmaps in HTML5, the lighting is rendered incorrectly. Using (the default) compressed lightmaps, generates no error. Also reproduced in Main Promotable-CL-2487422 (Enscr ...
Make Custom Event names start with "Event"/Fix "Event Event" issue with overridden Events
UE - Gameplay - Blueprint - Dec 17, 2015If you name an Event something like "Event Foo", overriding the event in a ChildBP gives you "Event Event Foo" To avoid this, please make Custom Event names Start with "Event" ...
The link to download Visual Studio 2013 in the Project Browser is invalid
Tools - Jan 5, 2015When creating a C++ project in the Unreal Project Browser without a compiler installed, the following message appears with an invalid link: "No compiler was found. In order to use a C++ template, y ...
Reflection across multiple viewports are different than original viewport.
UE - Graphics Features - Jan 21, 2016When viewing reflections in multiple viewports the reflections will differ from the original viewport. ...
UMG Widget color and Text color has different output at UE4 editor to Mobile preview and Mobile device.
UE - Editor - UI Systems - Jul 3, 2015UMG Widget color and Text color has different color output at UE4 editor to Mobile preview and Mobile device. https://udn.unrealengine.com/questions/251945/umg-viewport-device%E1%84%8B%E1%85%A6%E1% ...
NavMesh generates 90 degrees rotated for custom collisions
UE - AI - Apr 16, 2015The NavMesh creates breaks at the wrong rotation if the mesh is using collision created from outside of UE4. This is obvious in a lot of the market content with special collision created in maya/3d ...