The problem is that mostly I go over a token I want to move, click to select it and then in the same action (without releasing the mouse and reclicking) I move it. Now if by chance my mouse was over the size change marker (that I didn't see when clicking) the move resizes it. I think it would already help if, when you click on something that has not been selected yet, it will move. And to resize you actually have to target the markers themselves while the token is already selected. It happened to me a few times when I tried to copy and then move polygons I had drawn. The "obvious" point to click it (as I can only target the thin line of the actual polygon, I was aiming at where two lines collide to get a bigger window) was unfortunately also the point where a resize marker would show up, so that caused me to resize and distort them. (I learned and clicked on other parts then, but it was annoying) I assume it can also easily happen if you make a token smaller, to represent a small or tiny sized creature, that only takes up half the square or so, when suddenly the resize markers are almost as big as the token itself.