In Edit Schedule, I can change the date that the ASG is on, but nothing else.
Wait, I can change the day on which the season begins, and by doing so at least the dates match. But the game feels today is July 6, when it's clearly not.
.... a little while later ...
Okay. I simmed the season up to the current date. You were right; that was the problem. I don't remember coming across it in earlier OOTPs, but I must have.
The ASG now has a play/sim choice.
Thanks, Steve!