Rain
Editing it made it disappear. At which point re-posting was the only option.
FWIW, I did receive notification earlier today that a previous post of mine had been retrieved so I'm guessing the hosts are doing their best to help out with this.
Sorry, what you need to do if a post doesnt post:
1) Press back button on browser until you are back to your post
2) Select all and copy
3) Make a new post and paste it in
4) Change something (I.E. edit) so it doesnt get detected as a double post (the original failed post is still there but hidden).