When I save a Sony Vegas 12.0 file I'm working on, it is saved as a Vega 8.0 and I can't open it back up with full features?

Guitalong

Commendable
Feb 11, 2016
1
0
1,510
When I save a Sony Vegas 12.0 file I'm working on, it is saved as a Vega 8.0 and I can't open it back up with full features? How to get it to save as a 12.0 file?