Unreal Engine Issues
Unreal Engine Issues
Debug is not functioning within the Blueprint Function Library
UE - Gameplay - Blueprint Editor - Jul 6, 2015The blueprint debug filter is not working properly. It shows when your print string is being called but it isn't showing the trace location of the actual function from the blueprint. ...
PakBlacklist does not seem to be excluding files properly
UE - Foundation - Core - Cooker - Feb 10, 2016The pak-blacklist files do not seem to be working fully. While some of the files may be excluded Engine/Content/Slate files are staying behind, which can be seen once you've used UnrealPak ...
LIVE: Changing a Custom Event to Multicast in a parent blueprint causes crash
UE - Gameplay - Blueprint - Nov 13, 2014Changing a Custom Event to Multicast in a parent blueprint causes crash if the Custom Event is being used in the child blueprint. Callstack: MachineId:DE189244480D3CD0F8CA729A02DD38A6 UserName:tjb ...
[AI] Navmesh tiles on different layers get removed while streaming out in WP Dynamic Modifiers Only navmesh
UE - AI - Navigation - Feb 6, 2025Streaming out the navmesh and streaming the area back into the world before the GC runs causes the navmesh streamed back into the world to only have navmesh tiles on a layer with tiles that would b ...
Blurry RVTs after camera jump
UE - Graphics Features - Aug 7, 2025When using Runtime Virtual Textures (RVT) on landscape in UE 5.5+, nearby tiles may remain blurry (low-resolution mips) after launching PIE or making large camera jumps (e.g. via bookmarks or viewpo ...
Event Dispatcher name changes do not propagate to related nodes until the editor is restarted
UE - Gameplay - Blueprint - Mar 17, 2015Event Dispatcher name changes do not propagate to related nodes until the editor is restarted. This does not appear to affect functionality in 4.7.2. In Main, the nodes must be refreshed to restore ...
Characters with disabled Net Load on Client are loaded twice on a Standalone Client
UE - Networking - Jun 16, 2015Characters with disabled Net Load on Client are loaded twice on a Standalone Client. This does not occur on the Server. This only occurs in Standalone, not in PIE nor in packaged games. Reproduced ...
Overridden Interface Functions in Child BPs lose array output pins after closing/reopening the project and become invalid
UE - Gameplay - Blueprint - Feb 7, 2015Overridden Interface Functions in Child BPs lose array output pins after closing/reopening the project and become invalid. Reproduced in Main //depot/UE4/Promotable-CL-2434822 ...
UMG Throbber is not showing in project when using 'Set Number of Pieces' node off of Event tick
UE - Editor - UI Systems - Apr 22, 2015If you add a throbber to a UMG Blueprint and use the Graph of the Blueprint to change the 'Set Number of Pieces' and use 'Event Tick' to tick the widget, the throbber widget will not appear on scree ...
Renaming Blackboard Key Not Updating Behavior Tree References
UE - AI - May 17, 2016When renaming a blackboard key using the Entry Name box in the key's details panel, the names of the references in the behavior tree are not updated automatically. This is inconsistent behavior be ...