Could you try it on The Onion version (using torproject.org)?
Also check that it is definitely chipmixer.com that you're on and that you haven't accidentally missed a letter somewhere or something...
As long as you have your token, your coins are quite safe.
Yeah that was using the TOR version, also tried with clear text version and yes verified the URL a few times, definitely correct. The session does get recognized, just captcha doesn't work. I can't create any new sessions either.
I don't doubt that the coins are safe, as I said I have used chipmixer lots of times, it's just really frustrating since it's a substantial amount of money too.
//Edit
New sessions seem to work now, but my old session is still stuck with the non working captcha.