Hello! Version 1.1 has been released and should fix this problem. Be sure to check the readme included in the download or the devlog for this update before overwriting your old plugin file.
https://notritter.itch.io/ritter-map-transform-rpg-maker-mv/devlog/583886/ritter-map-transform-mv-v11
Thank you and good luck!
Thank you very much, both the tile and region settings are being saved properly now.
