The tapping of locations on the mobile view is hit and miss.
I can tap and hold and they bounce but still won’t open if I release or just tap them. A few sometimes open and sometimes don’t. They also have the same trouble I’m having on the desktop view that they originally show up part off the top of the map. (which you’re looking into in another thread.
This is the CSS issue you are facing now, your fusion-17391.css of your Wordpress theme is creating an issue that's why tap on location marker is blocking sometimes and sometimes it works. You need to identify the code in this CSS which is responsible for blocking.