When I go to my nation's rank page and try to sort my rankings based on my standing in the region, they aren't sorting properly.
When I sort from top to bottom, it appears that it's sorting the four-digit ranks first (i.e. the ones where I'm between 1000th and 9999th in the region), then listing the rest. The same thing is happening with my puppet Nuclerase.
I checked McStooley's and Libetarian Republics's pages and found something similar, except they've each got one-digit rankings that show up in between groups of thousands. (Libetarian Republics, for example, has a few #1 rankings between the #1000s and #2000s.)
The sorting based on nations' rankings throughout the world still works properly, at least as far as I've seen; it looks like it's just a regional thing.