The application Dell PremierColor that came pre-installed with a Dell XPS 9270 did not work well. I could not change the white point temperature.

After reading this:

https://www.dell.com/community/XPS/Premier-Color-ISSUES/td-p/7637752

I uninstalled and re-installed the app. It started working.

Then it stopped again: I cannot change any more the white point temperature. When I move the slider nothing changes.

I uninstalled and re-installed the app, but this time the app DOES NOT work any more. I can change profile, brightness, ... but I cannot adjust the white point temperature.

After the initial success, it stopped working after I installed Da Vinci Resolve. 

Is there anyone who knows how to get this app working again?