Night Shift not working on macbook pro

Hello,

I have a macbook Pro, 2018 model. It has macOS Mojave version 10.14.1.

The issue: night-shift is not working. I am able to turn it on on (see image) but the colors do not change.

I also tried turning it on by: method 1: going to system preferences, and by method 2: using the scheduled option. With all three methods, it seems that night shift is on, but the colors in the display do not get warmer.

I also looked at the settings for the night shift, and it is at the "warmest" level.

Finally, I read that night shift could have issues on iOS if some display accessibility options are on. I have grey scale, and invert colors both off. I also have the setting for contrast display to "normal".

I also was able to change the color of my screen to a "yellowish" tone by "callibrating" the color on the display with a lower "white point". So it seems that the screen is capable of showing the tones used on night shift, but the computer is not recognizing the night shift.

I ran out of ideas.

Is anyone else having this issue? Is this an issue with the OS or just my computer?

Thanks,

Katerine