Redmine

Edit: It started working again with no changes made.

I am really confussed and lost on this one
Environment:
Redmine version 3.4.3.stable.14186
Ruby version 2.4.2-p198 (2017-09-14) [x86_64-linux]
Rails version 4.2.8
Environment production
Database adapter Mysql2
SCM:
Subversion 1.8.8
Git 1.9.1
Filesystem

I setup the imap version of creating tasks and such from email the cron that is run contains

rake -f /opt/redmine/current/Rakefile redmine:email:receive_imap RAILS_ENV="production" host=mailserver username=username password=password port=993 ssl=true allow_override=all --trace

This works fine, I can see emails being read on the mail account and output from running the cron shows it connects fine reads the mail and exits cleanly. Earlier in the week people mentioned that it stopped working on the live server, I looked at everything I can think of and nothing is working. I then tried again on the test server same deal emails are being read but nothing is being processed.

Example syntax being used to create tasks

email subject new task 11
Content Here….

Project: projectname
Tracker: Risk
Status: Mitigated
Priority: High
Assignee: firstname lastname
Estimated hours: 1
Done ratio: 50

Enable WS for incoming emails is ticked but I read tht is only required for pop3 and not imap, I am really lost as to what is causing this. Is there another log I can view that would show more details regarding creation of tasks via email?