Appts+ creating thousands of Gcal reserved entries

Hi, the Appointments+ plugin seems to be re-creating and duplicating all my google calendar entries in MySQL every 10min. I currently have 85k entries… this can’t be the proper behavior. It should only sync these once and add new ones as they are added to Gcal (not recreate everything every 10min).

Any idea what’s causing this and how to stop? thx