Gray square behind pin content arrow
Just purchased iMapper yesterday. When I preview the map image, the pin content box looks as I would expect with the small arrow pointing to the pin (see https://ibb.co/ea2CGm). However, when I put the short code into a WordPress blog post and preview it, there’s a gray square behind the arrow (see https://ibb.co/nONjU6). How do I make the square go away on the actual post?
Thanks in advance!