[EDITED: NEVER MIND - GOT IT TO FINALLY WORK BY REFRESHING THE PAGE.]
I saved it first as a draft and when finished editing tried to publish. Got the error message below.
So I copied and pasted it into a new blog which is when I got the first "you may only use the subject once..."
It's still sitting there: https://excommunity.becomeanex.org/blog/update-post.jspa?ID=127005&draftID=122918 but I can't publish it, nor can I save it as a draft. Very frustrating. Last draft saved shows and it's now 12:17 pm. Hasn't saved it since.
Will try again tomorrow.