Bug: Fader wing screen contrast resets itself

The highschool i work with has an Ion Xe 20 running 3.1.0 latest build, and the contrast on the fader wing screens resets itself to higher than it was when i turn the console off, and when i go to change it back, the screen shows the contrast at what i left it at.

It is fine if i switch shows, but if i have to exit the console for any reason, the screens go back to full contrast.

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