I'd be happy to spend some time walking through the invite process. I haven't encountered what you're describing, so I'd like to investigate it further.
I can also suggest some strategies to make your current cohort questions easier to find.
Just send me an email with some available times: firstname.lastname@example.org
I have sent you an email with directions to the Community of Practice Guide. Let me know if you need additional help!
Have a great day,