Long time (for years) user... first time forum poster...
Evernote, please restore the Sync button! I use Evernote across 2 Windows desktops and my iPhone and I used to have a habit of hitting Sync when swapping between systems.
I cannot do that anymore, and now even after waiting and then exiting Evernote on one system when I go to another system the 1-2 documents which I was most recently editing now have a duplicate file created.. ugh...