Figured out the issue. Seems the map editor does not enjoy being used on the Japanese System Locale.

Yes, and it still doesn't allow me to go beyond a single digit. After clicking away from the limit, it resets itself to 22.

<t> Whenever I attempt to change the map size in the Global settings from 22 to the number I want, it will input one digit and the rest of the inputs give me dings from my speakers indicating that I can't do that. Is the Map Editor hardcoded to 22 x 22 hexes? This is the one included with the free ...