Not all participants showing up on list to assign into breakout rooms

adam deltinger mainuser2022 

We're also having the same problem within our small organisation (5 people).  The other day one of us was able to pre-assign external invitees to breakout rooms several days ahead of the session, and I am able to do the same with antother meeting I have set up in a couple of weeks - again with external attendees, yet another team member has a meeting set up for this Friday but when she goes to pre-assign people to the breakout rooms she's set up it only shows the internal people and not the external invitees, so she is unable to do it.  Why does this sometimes work but sometimes not?  Anyone got any ideas?  Many thanks!