It could be an issue with the Info menu position. You can try to deactivate all plugins except Meta Box, MB extensions, switch to a standard theme of WordPress then check this issue again.
It seems to be a problem with WooCommerce?
Yes, when WooCommerce is activated, it changes the default order and the menu order of the new CPT, settings page does not work properly. You can deactivate WooCommerce and check this issue again.
Wouldn't it be a better solution to allow us to enter a position number ourselves (instead of the menu item names dropdown)? That way we can place the menu where we want. If you link to the default menu position list we can work it out where we want it? https://docs.metabox.io/extensions/mb-settings-page/#wordpress-menus