@pjnu No, do not disable Secure Invites yet. The last time I tested Secure Invites a year or so ago, my test users had to reset to a new password when I disabled Secure Invites plugin, it was a hassle so I haven’t used the plugin since then. I don’t know if that’s one of the consequences if you disable it now.
Let me double-check on the users base in some installs, then I’ll get back to you.