issues with more than 5 showhides on a page

Hi Lester,
I would like to use several showhide on a portfolio page. Everything works fine until the 5th. Any text or showhide that I add after the 5th showhide, appears on the page but the formatting of my row changes to a white background.
Here’s an example: https://www.quickphototips.de/portfolio/forests-and-trees/
If you scroll down to the grey row you will see the text “This composition is not doing it!” on a white background, while this should actually still be grey.

Thanks!

https://www.ads-software.com/plugins/wp-showhide/