I’ve managed to mis-click in correspondence (while using the submit move feature) on two separate occasions (in two different ways):
- I placed my move, but then accidentally triggered an additional touch while scrolling down on a touchscreen, right before I hit submit.
- I made the error of confusing the submit button for the “Back to Game” button, mistakenly thinking I was in analysis mode when I was not. More about this issue here: A UI tweak to avoid misclick (correspondence)
Maybe, I’m just a klutz, but fortunately in both cases, my opponents were graceful enough grant the undo rather than exploit an obvious clicking error that would have ruined a ranked game.