Welcome! This forum has a treasure trove of great info – Scouters helping Scouters! Just a heads up, though - all content, information, and opinions shared on this forum are those of the author, not the BSA.
When sending an invite to a den meeting, parents were reporting that they did not receive anything in their email. There were no error messages displayed when the email was sent and no indication that the messages were not received. When I ran the RSVP report, I saw the message below:
It seems like your Den Admin role developed a glitch. I would try:
Ask a Pack Admin or one of the Key 3 (CM, CC, COR) go to Scoutbook → My Dashboard → Administration → My Units → Pack ### → Pack Roster
Then scroll down to your name. Select your Den Admin role, then reapprove it (even though it probably already looks ok to them).
This has helped previously in some cases for Unit Admins whose admin role developed a glitch behind the scenes. Reapproving it seems to kick it into reassigning permissions, etc.