2 Issues:
1 - I am using Memberpress to manage members. It works fine with Fluent Communities...until I attempt to email a user and invite to join. They are presented with a Fluent Membership registration (that looks great by the way), but unfortunately, it will not allow membership registration...it presents the user to (See the

2 - Only a group Admin can send an email invite to a new user to a space. If a space Moderator attempts to send an invite to a new user...they will receive this error