I'm in the Rift (if that is relevant) and according to the zone guide I had found and completed all the delves (not sure if that is the case) and all the POIs (definitely not) and all the dolmen (should be only one). Logging off and on seems to have improved the situaltion somewhat (dolmen still at fault) but has not prevented previously completed delves and dolman from showing as discovered but not completed. I tried poking around inside one delve and when I emerged it showed as complete. Now it is back to unfinished.