Dialogue box closes when using left and right arrows on "save" and "export"

Hello, when saving or exporting with the latest Aniamte updates, the dialoge box appears but disappears immediately when I move the cursor with the left or right arrow (or up and down) in the file name.

There's no way to get the cursor where you want it except by clicking in the exact position with the mouse or pen, which is of course slows things up (and is error-prone).

I am up-to-date with the last version and have noticed this since the previous update.  Thank you.