Problems with infotainment background colour

Hello everyone,

I have some problems with my wife's  '22 Monte Carlo - I changed some codings in VCDS after purchasing. One of the coding i've changed was that in Infotainment i have now two colours of background - white (it was the only one colour after purchasing) and red (it was coded by me). I also add the posiibility to change the brightness of ambient ligtss and footwell lights (retrofit). Sometimes the car "forgets" the new settings and cames back to factory settings BUT I don't have to recode it again - I have to do a "soft reset" of 09 and 5F - after that everything is ok and I have both colours and brightness sliders.

Any idea what it is??