[OPEN] Complicated border bug

Bug Report
Expected behavior:
Delete a portion of a border, and make the area where a border was deleted into a new country/border.

Actual behavior
Upon deleting a portion of a border, and creating that region into a new section, (for example deleting the border on the island of Corsica and making a new border there as it's own division of France, with it's own country and cities), the old border/country from which you deleted a portion will break. More specifically, the border for that country will disappear in-game, but not in the editor. It is a similar issue with what was going on with the looping the map horizontally bug. You can only pick the country if you click on the name of the country in the city info panel. This: https://atwar-game.com/forum/topic.php?topic_id=40041is the bug I am talking about. It does that to the country you separated a piece from, but only any countries you did that to, not the new divisions, and not the countries you left alone. You can't go back into the map editor and just delete the old country and add a brand new border over the old broken one that you deleted, because the map editor does the thing that the original bug with looping did, it showed that you never made the change at all. I am afraid to screw around with any aspect of the map again because in-game you see the partial changes, but in the editor you see no changes. I won't edit the map again until told to, or informed that the bug is fixed.

Steps to reproduce the behavior
Make a clone of the world map, head on over to an island or any border at all and delete a piece of it, and then re-create that section as it's own country. (Like I said, you could just delete the border on Corsica below France, then make a new border on the island with that border belonging to it's own country, and not France. Add a city too just to be safe.) Save the map, and then return. Check the map editor and the in-game view of the map, because both in-game and map editor experiences are different.

Information:
Browser:
Google Chrome

Browser version:
Version 67.0.3396.99 (Official Build) (64-bit)

OS:
Mac OS X

Any other relevant information:
I have already posted a topic about a border bug where they don't save when you return to the map after saving, but that bug is replaced by this one. (I get different issues with borders now, not the old ones) So unless that bug still needs to be fixed before this one, you can disregard the old post on border bugs.

Attachments:

https://atwar-game.com/maps/?show_map_details=1&map_id=22676

This is the map where the issues are occurring. Italy, France, Poland, Lithuania, Ukraine, China: South, Russia: Far East, and India are affected by the bug. The divisions I created out of them are A-Ok, but the original border is broken.

UPDATE: There is a way to bypass this bug, although very tedious. After a little while, the border changes will appear in the map editor. What you have to do to fix the problem is delete the country and borders that are having problems, and that's it. Just get rid of whatever is broken once the changes appear correctly in the map editor, then re-create the border from scratch. Unfortunately, Russia: Far East, France, Italy, Ukraine, and many more were affected by the bug before I knew it existed, so I guess it is time to redraw some borders.