Problem with the "reply" button

Hey there.

Seems like my “reply” button doesn’t work.
When I try to a post someone made, by clicking reply, it shows me his name at the top, but when sent, it just shows as a normal post.
Could be something on my side, no idea. Also don’t know if people even get notified, when I reply to there post.

Help would be much appreciated!

It worked before!