Service Request tickets are getting reassigned to a different technician when status changes

When a technician changes the status of a Service Request Ticket, it automatically gets assigned to a different user.  It appears that it is being assigned to the first name in the team list.  

I have not been able to find anything in the team/user/workflow configuration that is causing this.  

This reassignment does not happen on Incident tickets.

Hoping someone will have suggestions on what I should look at in order to troubleshoot this issue.