I’ve done that as well, booting the 64 bit kernel makes no difference
and is actually unnecessary as premiere doesn’t require you do that
to run the app in its native 64 bit.
It sounds to me like you should revert to 6.01
I’m still running 6.01 and have none of the issues you are having.
I heard about a lot of problems mac users were having with 6.02
so I’m skipping that version altogether.