it started popping up on lemmy 0.18 instances for me and it’s inconsistent, sometimes refreshing or updating the feed or even posting something there would make the buttons pop up (as new elements that is).
I can’t interact with them so something is definitely wrong.
Same here, my workaround is I try not to reload the page or open the page in new tab. If it happened to me, I just close the tab then open main page then navigate to the same page from there.