Need help troubleshooting ManageWP

I picked up at 10 site Standard for ManageWP from AppSumo for 50% off It seemed ok at first but now it's proving to be a headache. The available updates keep on disappearing and/or failing when I try and update. I've had to deact/react the Worker plugin several times but still unable to get it functioning.

In theory it's a wonderful idea, but I'm now spending alot of time to find the source of conflict. Is anyone running the WMPU dashboard and succesfully managing the site from ManageWP dashboard? I could really use some help/guidance!