Underscore,
Per what I quoted from graphisoft you won't be able to do this with 64bit PC or OS X.
My mac, like your 64bit windows, can't import the snapshot. My workaround is to do this on a 32 bit XP machine, save a pla and then open that on the mac. It creates a library part for the snapshot looking like the photo image is attached to the top of a mesh topo.
I've attached a zipped file with the resultant library part and the snapshot from google earth. Try loading it in the library of a project on your machine and see if it opens ok.
By the way, you've been on this forum long enough to know you should add your first name (manners
🙂), version(s) of AC and machine specs to your profile.
Erika
Architect, Consultant
MacBook Pro Retina, 15-inch Yosemite 2.8 GHz Intel Core i7 16 GB 1600 MHz DDR3
Mac OSX 10.11.1
AC5-18
Onuma System
"Implementing Successful Building Information Modeling"