In some cases the Take Action card seen inside posts (wherever is set) is not following while scrolling down. Was reported in Handbook by aradu but with a very quick look at the first 10 posts in the search results page of the Greek site, I found 2 cases already, so I am guessing it is quite common case.

https://www.greenpeace.org/greece/issues/klima/8121/i-iliaki-koinoniki-politiki-me-apla-logia/

https://www.greenpeace.org/greece/issues/plastika/7860/homo-plasticus-emeis-kai-o-plastikos-politismos-mas/