Normally, I use Evernote in browser on my PC during the day. And at night, or other times I'm away from my computer, I will take notes on the EN app on my iPhone. Lately, the notes I've been taking on my iPhone don't show up on my PC the next day, and when I go to check what I had typed in on my iPhone, the notes are gone there too, like they never happened.
I make sure to hit the check mark in the corner of the iPhone app note when I'm done. I also make sure to close EN on the PC whenever I'm away from computer in case that causes problems.
I'm trying to figure out if this is an iss