Hi @bartenderonduty,
Sorry, but I can’t really confirm that this is an issue with the theme because I don’t see any theme styling that overwrites the form styling (all the form styling is coming from Ninja Form CSS). Can you install and test it on a default WP theme (Twenty Nineteen) and see if that resolves the issue, if not then we know its a Forms issue, if it does then we can do further investigation why is this happening. Although the State and Country is the same select input, we can not really compare the two because the Country is some kind of a premade (with options) select input.
For now you can use this custom CSS to fix the styling of the country select input.
.listcountry-wrap .ninja-forms-field.nf-element {
background: #f7f7f7;
border: 1px solid #c4c4c4;
border-radius: 0;
box-shadow: none;
color: #787878;
transition: all .5s;
}
Thanks,