Valikko
I've noticed a few times today when posting to the Wall that my post disappears, or that the display hangs indefinitely after I've posted it. I reported this on GitHub ( https://github.com/Tatoeba/tatoeba2/issues/1870 ). Until the problem is fixed, I recommend that you write your posts in a separate editor and then copy the contents here, or write the posts here but copy them to a separate editor before posting. That way, you'll be able to copy and repost if the original post doesn't get saved.