Previously (I’m 99% sure) if a topic was pinned and you scrolled down the title would appear in the header (as you can see in image 1) and you could press icon and it would pin/unpin. However it does not allow you to do this despite the pin still being clickable. In image 2 it works fine you can pin/unpin
This happens on the latest version of Discourse and affects desktop and mobile. I’m using chrome.