I have the same problem as well, ever since my last upgrade. I am on Windows 10 Pro, 64 bit. I deleted the app, rebooted, reinstalled, with the same problem. Very frustrating. I sent in my Activity Log to Evernote support, and screen shots (worthless - a blank note where I can't type anything but the title). SO now I am writing notes on yellow pads of paper!
Does anyone know how to roll back to a prior version which works?