Shipping country selection is always resetting in checkout

Hello,

Now I have a new problem, Sometimes when you change country from one to another in the checkout it does not accept and puts the original country name back to the original one. For example you have UK set as country/ region and you change to USA. Sometimes it does not work and the system replaces USA with the UK. Same Visa Versa. The same issue occurs on Ship to different address. I put a video in a dropbox for you to see what happens (https://www.dropbox.com/s/67rgliwndlpc5t3/Checkoutnotchangingcountry_2020-07-24%2017-39-27.mp4?dl=0). The second video link shows issues when you try to add or remove ship to different address (https://www.dropbox.com/s/67rgliwndlpc5t3/Checkoutnotchangingcountry_2020-07-24%2017-39-27.mp4?dl=0)

We have set up the country based checkout on the site using your plugin, can you please look into this issue?

Manik