have seen, that MX-snapshot exclusion list deletes everything from /boot/grub folder. That's right, but MX provides a new package 'grub-themes-mx'. The package installs grub-themes correctly to /boot/grub/themes. The themes folder must be included in the snapshot or you have a new iso with the installed package but without the necessary files for that.
At the moment you must the package reinstall on snapshots.
Code: Select all
sudo apt-get install grub-themes-mx --reinstall