Hello @Keith O'Brien
While we originally set a limitation for shared folders where only 5 external users (not associated with your account) are allowed, there was a recent policy update where we started enforcing this limit. Details can be found within this support article: https://support.lastpass.com/s/document-item?language=en_US&bundleId=lastpass&topicId=LastPass/t_share_folder_outside_acct.html&_LANG=enus
** Existing folders where more than 5 external users were granted access will be allowed to continue. This change affects all new additions only.