I am having the same issue. Just got a new computer (macbook) a few days ago, and it started showing the Region A / Region B graph.
This is happening in both firefox and safari. I have deactivated and reactivated the plugin, cleared the cache, even upgraded wordpress to the latest version to see if that might change anything. Nothing has worked.
I can see the stats fine on another computer, but no matter what I try on my new one, it’s been showing this static graph for days.
Is there anything else anyone would recommend for this?