I have a notebook that has been shared with one team member for forever. Added a second person to the team. I've been trying to share the folder with the new team member for the last few days. In the sharing window it shows they have been invited however they have never received an email with that invitation. The invitation does show up in work chat but when the team member clicks on the notebook shared, the team member gets an error message. Tested a couple of other notebooks shared and is able to join without issue. Any suggestions?