[OPEN] Cloned map border / graphic glitch

Bug Report - Cloned map border / graphic glitch

Expected behavior
I cloned a map, keeping only the background image, no units, countries and borders. I drew my own borders on the map and decided to play-test the map. I expect my new borders to show up the way I have drawn them.

Actual behavior
I cloned a map, keeping only the background image, no units, countries and borders. I drew my own borders on the map and decided to play-test the map. My countries worked and the borders were there, but there was no surrounding line - almost like "ghost" borders and the previous borders remained on the map. See below images for more accurate visual depiction.

Steps to reproduce the behavior
See below images.

Browser: Google Chrome

Browser version: 73.0.3683.103

OS: Windows 10

Any other relevant information: It's fine in the map editor, but breaks during actual game play. I was able to reproduce this by both cloning the World Map and making edits to the world map, along with cloning the edited version I made below and editing that version.

Attachments:
Please attach any screenshots or videos that help explain your issue.

I have a nice 3-day premium as a gift for returning after a month. Decided to make a map. Cloned a copy of this one.
https://imgur.com/a/cbzH1m6

I modified the map to add some more borders and play around to my desires.
https://imgur.com/a/m39KYmg

When I playtest it, within the actual game (not the map editor, it's fine there), the purple colour follows the border I've drawn, but the map follows the old borders. This is the case for all countries.
https://imgur.com/a/onA0gyE

I was able to reproduce this by both cloning the World Map and making edits to the world map, along with cloning the edited version I made above and editing that version.
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Apologies for URLs, pictures were not working for me.