Update to 4.1.6 causes connection problems

I’ve updated the plugin on my site, and got disconnected from the MainWP Dashboard with the message that the public key already existed. Deactivated/reactivated the plugin and then tried to reconnect, which at first seemed to work. But running a sync from the MainWP Dashboard once again got me disconnected. Updated the MainWP Dashboard plugin as well, but same problem. Reverting back to MainWP Client 4.1.5 fixed my issues and keeps me connected.