I'm also getting the same problem. Its been work fine for months but now my users are getting an incorrect report within the subcription that they dont have acces to, worrying!! When I go to check the email subcription 20 minutes later its showing correctly.
Please help, could be big problem for us if the subcription service isn't working correctly.
I tested it in my side, and it work smoothly today, could you please send me some captures when it generate the wrong reports? I'd like to raise it to internal team. Also, you can raise the issue to support team: