Can you please let me know which version of MB Views is on your site? Please ensure you have the latest version 1.11.3 and clear all caches (browser, plugin) then recheck this issue.
Both ways to get the field value with Twig code: attribute() function and dot (.) notation should work on your site. I've also informed the development team to remove one way to avoid confusion for the user.
If the dot (.) notation works on your site, please type the field ID manually. You can also share the admin site account to this contact form https://metabox.io/contact/
I will help you to check the issue.