Fotographie Blocks: WooCommerce Product drop down window blank unless scrolling

Hello, I am trying out Fotographie Blocks for my website and love it. However, I am experiencing a bug when selecting options from the drop down menus on my WooCommerce products when using a desktop. The drop down menu is blank/white and content only displays one line at a time if you scroll over the particular option. The menus work correctly on the mobile site. I also tried another theme and the drop down menus work fine on that theme. Thanks in advance.