Checkout: Country option sticking on shipping page

Hi,

I’m experiencing difficulties with the checkout. The country option is sticking when clicked on for the shipping address. When clicked on it jumps to the next country on the list rather becoming an interactive list or option to type in country. If you start the process of purchasing a product site until you get to shipping, you should be able to see what is happening. Also, could I set the default country to USA? Te country option is working on my other site.

Thank you