Hey Max,
I’ve tested the latest WPML version and our the latest version of our themes and I have translated contents in my test site without problems.
We have received reports though that others are experiencing issues. With that said, I’d recommend that you setup a test site online using a fresh WordPress install, WPML and X/Pro only. This way, if you experience issues, we can investigate in your test site. You’d need to provide us with the test site’s WordPress Login URL, Admin Username and Password in a Secure Note so we could see the issue and try replicating it in our test site.
Thanks.