SLA Config - Priority not available

SLA Config - Priority not available

Hello, I am setting up an SLA in one of our departments but when I go to set the Priority in the Escalation portion of the SLA, the dropdown list is missing the priority I am wanting to use. Please see the screenshots below.





As you can see, the priority I have configured to be available in the Priority field is not appearing in the list of available priorities.

I have configured this to work with another department in Desk so I know this should work but it won't appear in this department.