Sync between Desk and CRM not working

Sync between Desk and CRM not working

We are having issues with the integration to sync between zoho Desk and CRM.  We have created the integration to start both the CRM to Desk and the Two Way sync multiple times.  We finally got the sync to bring over some of the companies(we renamed Accounts to companies in our CRM) but only 20 contacts came over.  We have deleted the integration and restarted several times with no additional migration of data.  We also used a different admin login to try to sync with no success.  We have checked all of our mapping of fields in both contacts and Companies and they are all mapped correctly. 

Please advise as we would like to get these integrated to move to our next phase of testing and roll out to our service team.