When I attempt to move an object or symbol with the arrow keys, it moves diagonally

Just like my title says, when I try to move things with the arrow keys for precise moves, the objects move diagonally. But only in one direction. When I press ANY of the arrow keys, it moves diagonally up to the left. Is there a setting I accidentally turned on? I tried installing different versions of Animate but it does it in every version. It wasn't happening earlier in my project, but recently. Is it possible it's attempting to move it backward in a 3D space? Any help would be appreciated, this problem is making it hard for me to align things...