Hello,
I don't know well if I need to consider that as a bug or as a feature.
On one side, yes, your are right, it's problematic if your turn pass when you are still in the +10/-10 menu, and yes, when the time limit is set to 3 seconds, you have to be very quick to play 10s and aces.
On the other side, it would be a possible way to cheat. You select a 10 in your hand, and then can stay indefinitely on the +10/-10 menu ?
In particular, you can choose to cancel and change your mind, or select again your 10 or your ace and extends the time limit as you wish that way, including if we set another time limit for when you are in the +10/-10 menu.
When one set a time limit, it's supposed to be for your entire turn, including the decision to make +1/+11 or +10/-10.
I realize that the question is the same in uno. Should the time taken to choose the next color be counted against the time limit or not ?
At the time I added the time limit in uno, I answered no. But both point of views are valid. That's not so easy.
What do you all think ? Ideally, it should work the same with all games with time limit.