Testing after a post disappeared

I just wrote a 320 word post about places you can interact with animals in Japan and got a "this page doesn't exist" when I tried to publish it. So before I spend more time on trying to recreate it, I'm testing that this post publishes okay. Anyone else have a problem today or was it a fluke one off?

Update: I think its because I put links in the post. I've tried it with and without links. It posted without links.