i have this same issue -- in fact it won't even show me the version i'm - that's blank too. but i do know i JUST installed it on a new laptop 3 days ago. and its fully synced etc (i miss the sync button to force that)
screenshot - pop up is supposed to be the version info
also closing and restarting doesn't fix.
frustrating as heck especially after you renewed my yearly sub without even notifying me.
win 10
however, i did try what dawdillon says above. file quit instead of the X = and it recovered my notes.. BUT they should be the same thing.. quit and X should accomplish the same act.