Colin - I remember you having some issues with blog/journal posts not saving a couple weeks back. Just encountered the same thing with a journal, and no matter how many times I went back in the tab to try to re-submit it it would not post. Took me opening a new tab, copy-pasting the journal over, and then submitting for it to work.  Perhaps there's something where a tab can time out if left open for too long. No clue.