Apologies to the forums moderators team as I reported a thread to advise of this situation, before noticing this thread.
For what it's worth, I used "quote" to try to post this, and added a title to my post; hit "Preview Post" to see if it would appear, and it didn't. So I am typing this again now without a title, not putting in the quoted section, and will preview again.
I previewed and saw my text, then decided to add/edit something, and previewed again - text was gone. Hit the Back button so I would regain my text, hit Preview again, and my text returned. Now I'm adding this update, and I suspect I may need to hit Preview once or twice to ensure it appears. Seems like it is hitting on one bad "server" every x attempts?
EDIT: I hit "Submit" to post this, and it didn't appear. Immediately I hit "Edit" and added my text (I had copied it to my clipboard before submitting). It then appeared properly after I saved.
The posts people have made in various threads - will they remain blank, or will the text appear once this is resolved?