I often practice to gain coins when there isn't anyone available for a match and when I accept a match from practice it ends up with me having to reset the game in most cases.
However, worse scenarios have been encountered. A couple of times I played where my opponent had only 2 units instead of 4 and if I moved to the spots where those missing 2 were and reset, the game made our characters share that space. I could my move my units but my opponent could not move theirs. I just wanted to report this and hope not many others encountered this issue