Question Why does my unit lose its settings when I power it off

You need to power the unit off with the front panel power knob if you want the unit to store the last settings you made, very much like you need to power off your computer in the right manner to get it to start up correctly. If you don't do this, then it will recall the settings from last time you powered off on the front panel.
This answer affects the following products: D-TwoG-MajorG-Major 2M-OneM-One XLTriple-CXO24