Reply to Another Post Shows Up as a General Reply to the Thread

I often post from my Chromebook, via a web page in Chrome. Lately, when I reply to a specific post, I see an indication that I am replying to the other author. But when I complete the reply, that association seems to disappear. In other words, my post ends up looking like a general reply to the thread, as opposed to a reply to a particular person. This doesn’t happen when use my iPad or phone. Is this a known bug, or am I doing something wrong on the Chromebook?

If you’re replying to the post directly above yours, it won’t indicate that you’re replying to that person. If you use the quoting function, or reply to a post farther up, then you’ll see an indicator showing who your post is directed to.