Enlargements from thumbnails won't close

Since the update to MaxGalleria 3.1.8 the light box enlargements don’t close easily. The cursor shows an image of a minus in a spy glass that communicates you that you can click anywhere in the darkened background to close the image, but that doesn’t work. You have to click exactly on the “x” immediately above the top right corner of the image only. In the top row of thumbnail images, the “x” doesn’t show at all, and if you don’t know that there should be an “x” above the top right corner, you would not even know you can click there, thus you have no way to close the image except by leaving the page. Can you tell me how to get the whole black background clickable so an image can be easily closed?

https://wordpress.org/plugins/maxgalleria/