When I master audio files in Cubase, to peak at -0.3dB, they display as being 0.6dB loud in Vegas all the time. I have no idea why. I am sure there is some default setting that Vegas has that video industry users are all used to. As an audio guy, however, I find it weird that professional audio would be clipping in Vegas when nothing has been touched. -0.3dB should be the same no matter what is playing it.
Even regular music from bands clips when I drag it in, so it can't just be something I do with my files.
Windows 10 64bit, Vegas Pro 16 and 17