Can't reply to a comment on my own post - can't access my post's page

Two days ago, I posted my first ever post here in Premiere Bugs category. On the same day I got a comment which I replied to without an issue. When I tried to reply back the following day, I couldn't because it would scroll all the way to the top, on another Bugs post instead of my own post. The same thing happens when I try to access my post through my notifications. I can see my post but it's part of a specific Bugs thread called "