I set all faders in my project to a max of 0dB and a min of -42dB. Every time I close and reopen the file, the settings default back to +12dB and -60.5dB. This seems to be an issue RB 2.6.
I'm sorry for the issue. The good news is that I can confirm that this has been resolved as of Remote Builder 2.7.
2.7 is now live on Pro.Bose.com. You'll be able to open the build from 2.6 and it will have the correct max/min settings.