I don't have the game numbers, but multiple games I have had a moat, the witch was played and I still got curses. It never asked me if I wanted to use the moat. I also tried using auto play on the moat and it just automatically gave me the curses.
I am playing on a mac with a chrome browser.
This has only started happening recently. It must have started in the past day or two.
That's a general problem with Moat, not related to the browser. In my experience once I put the autoplay to "Off", it actually worked (asked me), but from your description that isn't the case for you?
I just tested it again it seems to work without the autoplay on now. It didn't before so maybe it's resolved? Maybe it's sporadic. ???
This problem, together with related other autoplay problems, has been fixed.