Salesforce Real Time Sync Not Working

We have the Salesforce integration set up and running the integration manually does work, although we would like to turn on the real time sync.  We are only pushing records into Acumatica from Salesforce, so we have no export scenarios assigned to the Salesforce setup.  There are no errors if we run the import manually from Salesforce, although when we update Salesforce, opportunity for one example, it doesn’t update the Acumatica record.  We have to do a sync within the Saleforce Data Resync screen.  Within the Salesforce Sync screen, we do have all entities running for the real time sync (with Import Scenarios activated for all of them).