Since the New Year my Country (UK) positional stats have been very erratic where on 29 Jan I was position 828, rose to 818 on 2nd Feb and now am back 828. Looking at higher positions I have see some people that have large (100+) daily drops which are not matched by the people around them, nor do have any negative daily points score. It would seem that have changed country and dropped position, though I suspect not many people change their country affiliation to the problem.

I wonder if this is connected to the problem reported about team stats recently.

I applied the same solution as for the team changes. Country positions should stabilize now.