As reported by VidMus here, there is a bug in VEGAS Pro 14.0 (Build 161) whereby the Resample mode gets reset to "Smart resample" in new projects after restarting VEGAS Pro, despite checking "Start all new projects with these settings" when other modes such as "Disable resample" are applied.
Please test and confirm.
File > Properties > Resample mode: "Disable resample" > check "Start all new projects with these settings" > OK > File > Exit
Restart > File > Properties. Resample mode has returned to "Smart resample".
I have submitted a support request [Ticket#2016092017003552]