So... No luck... Scoured both my noreply and support emails and removed any that would possibly be causing a problem and no luck... Still getting the problem... @KevinTheJedi
On a side note, I've tried to delete the ticket that referred to the initial all users group but can't... Even though I am logged in with the main user.
It looked as though the ticket was bugged... Have carefully deleted it in the SQL...
Looks as though there's some references in the thread tables to a user (all users group email) More cleanup required...
Manual cleanup complete.. Looks good so far.
Also I am bad and missed a mailbox that OSTicket pulls from... I need more sleep.
Here's the funny part... I only remembered the third mailbox once I did the DB cleanup. After which OSTicket created two tickets from emails in that mailbox.