I got a new 13" MacBook Pro a few months ago. Ever since I got it, I've had some persistent Finder problems:
1. Spring-loaded folders don't work. Specifically, if I have multiple tabs in a finder window, when I try to move or copy a file from one tab to another, the tab I'm going to does not pop open (though I can at least drop the file in the tab… it just won't pop open).
2. I've experienced numerous Finder crashes where the sidebar disappears. It could have something to do with using AirDrop, but that may be a coincidence.
>I have checked Settings>>>Accessibility that the appropriate boxes are checked.
>I have reinstalled the OS three times, including wiping my drive and starting from scratch.
>I have had three calls with Apple Support.
>I've also had a Genius Bar visit where the tech confirmed that not only did a fresh install not fix the problem, other 13" MacBook Pros they had on the floor were doing the same thing.

The Genius Bar tech turned in a ticket to Apple engineering and I have yet to hear anything on that.
Has anyone else experienced this or know more about this? I'm not finding much online.
Thanks in advance for any suggestions you may have.