Addendum:
It seems to have to do with the game being confused with another game. Sometimes it will show a different opponent's name at the top than what it should be for the game in question.
Thus, if it is not my move in the game with the other named person, it will tell me it's not my move in the game that I've actually selected and that is actually displayed.
If it *is* my move in the game with the other named person, it will tell me that it's not a legal move, because it's showing me one board and processing the move as if it belonged on another.
Error! It is not your move.
- Yes, it damned well is my move.
Error! Illegal move.
- I assure you, the move is legal.
____________________________________________________________
Getting the above error messages a lot of the time, despite installing updates of the app whenever appropriate. Any idea why these bugs are present and whether they're likely to get fixed?
I haven't figured out yet any cause for them; in each case I just have to retry making the move several times until it lets me.