You're welcome!
I have just checked the game and the code and found a bug that I introduced with the previous update: the code allowed both players to point the same card at the same time, which is a condition forbidden by the rules. The code assumes that such condition never happens, so maybe the stuck card bug you noticed is a consequence of this unwanted behaviour.
The 0 score is OK in this case: points are awarded only after the completion of a round.
The CPU shouldn't make any difference. Anyway, I'm going to test the game myself on my 68030 machine and, if everything goes well, I'll release a new update shortly thereafter.