Hmm, this is interesting. In this thread:
New replies aren't showing up. A reply bumps the thread and your name shows up as the most recent post in Board view, but the post itself doesn't show up in Thread view. If you click Post Reply, you can see the "lost" replies (two of mine and one from another poster) below the reply window, but they don't show up in the normal thread view. And if you write a reply yourself, it presumably won't show up either (except in Reply view).
Any idea how to snap it out of it, or shall I just make a new thread?