I think I found a solution to this. In the “functions.php” is a section
`/**
* Load the style.css
*/
add_action('wp_enqueue_scripts', 'mythemeprefix_styles');
function mythemeprefix_styles(){
wp_enqueue_style( 'css', get_template_directory_uri()() . '/style.css' );
}`
I changed get_template_directory_uri() to get_stylesheet_directory() and now it seems to be working correctly for me.