In the animation editor, the doesn’t play all the way to the end if you have looped as false.
However, it’d play the full animation if you have it looped or play it through a script in game.
It’s only just the animation editor doesn’t play the full length. It’ll play up to 85% and then cuts off.
Is there a reason you haven’t upgraded to the latest version of the Animation Editor? A number of issues were fixed in later versions and it might resolve your issue.