Logic Pro Atmos issue-- 3D object info is missing.

Greetings. I just noticed a problem with my mix that is troubling. 

I have five tracks of 3D objects and somehow between v5 and v6 of my project, all the 3D panner info is gone and those tracks are now sound bed tracks with default settings. 

Along the way when I'm mixing, I'll version the project but doing a Save As.

Why would this happen and is there any way to recover the 3D panning info from the previous version? (there's tons of keyframes)

I also noticed another issue in my latest version -- the bus assignments were messed up in the new version. For example bus 3 and 4 sends were now bus 18 and 19 sends. That was simple enough to fix, but still troubling.