Unreal Engine Issues
Unreal Engine Issues
Lyra: When a bot fails to fire their weapon, all bots play their weapon fire fail animation montage
UE - Gameplay - Jun 12, 2024UDN reported: Lyra bots will sometimes play their weapon fire failure anim montage "randomly". The reporting licensee found that this happens when another bot in the level is reloading. The gamepla ...
Crash when calling SetVector2DParameter on a Niagara Parameter Collection
UE - Rendering - Architecture - Niagara - Mar 10, 2022Crash when calling SetVector2DParameter on a Niagara Parameter Collection. The value for the SetVector2DParameter may or may not have to be changed in order for the crash to occur. Assertion faile ...
Crash when Deleting Variable from Blueprint Struct
UE - Gameplay - May 23, 2019The Editor will crash when attempting to delete a variable from a Blueprint struct. This crash does not seem to happen if save the map with the actor in it. ...
Launch on fails during staging with a SafeCopyFile Exception for MfMedia.uplugin
Tools - Jan 10, 2017Was able to repro this on machines with and without machines set up for Xbone testing. ...
Editor crash when compiling blueprint that contains an implemented interface after removing return node
UE - Gameplay - Blueprint - Apr 8, 2015If a return node is removed from an interface that has been implemented in a blueprint, compiling the blueprint will cause a crash. Crash Reporter: [Link Removed] Frequency: 2/2 ...
Actor in Map in Struct Causes Crash When Changed
UE - Gameplay - Blueprint - Mar 8, 2018User submitted bug. Editor will crash after changing key or value in Map. ...
Subway Sequencer crashes when opening shot0010_001
UE - Anim - Sequencer - Dec 13, 2019Opening specific files inside of the "Sequencer" doc sample project results in engine crash. ...
[Sound Cue][Open World] - Crash when creating a Sound cue from an Ambient Sound actor on an Open World map
UE - Engine Scaling - Streaming - OFPA - Apr 18, 2022When trying to recreate an issue that resulted in [Link Removed] Closed , I came across this call stack. Regression testi ...
Adding an actor with a default property track immediately after opening a sequence will crash the editor
UE - Anim - Sequencer - Aug 14, 2020If an actor has default property tracks set up in the Project Settings, adding that actor to a level sequence through C++ will crash the editor. This seems to stem from the creation of the default p ...
Regression: Crash when saving the level blueprint of a world-partition map containing any node with an unconnected input pin of type "Gameplay Attribute Structure"
UE - Gameplay - Gameplay Ability System - Feb 19, 2025In UE 5.5, when the user attempts to save the level blueprint of a world-partition map, the Editor crashes if the BP contains any node with an input pin of type "Gameplay Attribute Structure", as lo ...