I have the same problem. All text in notes and in other windwos, as example version notes are not visible. All are blank if I start evernote, if I reinstall evernote again, it works fine. If I close evernote the same problem.
I have the reinstall evernote everytime I closed it on my win10 notebook.
iPhone, online the text is visible.
win10
evernote 6.11.2.7027 (307027)