Hi,
even after upgrading to 2.2.2 as well as reinstalling 3.9 as suggested by you I have a conflict between TinyMCE and soundcloud.
I have to say that I use a premium theme dynamix from themeva in combination with VisualComposer.
However soundcloud still interferes with the visual editor of WP3.9 and makes changes impossible.
Any further suggestions?
Kind regards,
gineo