swindleh9:

I am able to pair the H9 with my MacBook Pro using the built-in Bluetooth Pairing, but when I launch H9 connect (1.6.2), it says it cannot connect.  When I choose Devices -> Connect Via Bluetooth, nothing happens.  The same happens when I choose "Manually Connect" from the menu and then click the Bluetooth button.  No new menu, no changes.

Do you have Yosemite installed on your MacBook?  The problem you're describing sounds like the problem other users including myself have had on Yosemite.  We made a special beta release for Yosemite which you can download here:

http://ftp.eventide.com/ljdl/SkipEmulator/H9Control-1.6.2.6-osx10.10-installer.dmg

We should have an official release early next week.