Character using motion matching will continually animate in builds

[Colbra]

Using motion matching in 5.4 , when I build the game the character continually animates with no input, exactly what’s happening in this post

[5.4] Character using motion matching will continually animate in builds

As the title suggests, the character using motion matching will continue to move in all builds and animate, without input. Its very strange. See the video below for a clip of the supposed bug.

anyone have any ideas on why this happens?