Dear all
I hope you are all well, and for those who installed UI7, i hope you are enjoying it.
Meanwhile, it seems that Samsung has fixed the invisible pin-button with a new "Samsung Capture" update, version 5.8.57.2, while the current one is 5.8.56.4. Also, there is some added feature regarding the resizing of the captured area.
See this post for previous complaint
It doesn't seem that the update is available yet in the UK, but it's on the way