Problem of colors with video and limited

Hello, I have a problem that I do not understand.
I am on mac mini pro 4, and I calibrate on an Eizo Cs2400 screen.
The monitor is connected to the mac by an ultrastudio Monitor 3G
The problem I have is that when the Davinci project is in video and the monitor is in limited, the image is disgusting. Same, when both are in full.
However, when I put the project in Video and the monitor in Full, there the image is correct.
I work in REC 709.
Does anyone know where the problem could come from?
I am on mac mini pro 4, and I calibrate on an Eizo Cs2400 screen.
The monitor is connected to the mac by an ultrastudio Monitor 3G
The problem I have is that when the Davinci project is in video and the monitor is in limited, the image is disgusting. Same, when both are in full.
However, when I put the project in Video and the monitor in Full, there the image is correct.
I work in REC 709.
Does anyone know where the problem could come from?