Check that all entries in both languages are published, and if you use sorting by categories, you have translated their names and selected in both languages. Maybe this will help.
Because the problem with the visual editor is also with default wordpress templates, I guess that the problem lies with the WooThemes and there we must look for support. :(
For me the same thing. Visual editor (default) does not work too.
Since I have a fresh installation, I deactivate the only plug-in – woocommerce and immediately appeared editors: visual and Avia.
I have the latest versions of WordPress, template and plug-ins.
Unfortunately, I can edit but not sell.
Any solution?