For 3+ years I had a custom styles menu in my Wordpress editor that I added in functions.php which worked great.
Today, I went in to edit a new post, and not only doesn't my menu work, but I cannot switch to the text-only view in the post editor.
I get a console error in Chrome (Version 52.0.2715.0 canary (64-bit)) of
tinymce.min.js?ver=4308-20160323:11 Uncaught TypeError: Cannot read property 'ownerDocument' of undefined
My menu shows but does not work, and the "text/visual" toggle does not respond either.
Both of the above things work in Safari 9.1 as always. Any ideas? Bug in Chrome?