[PROBLEM] video calibration reverts back to default

[pyraylos]

hi. i went through the settings for video calibration following this path:
system/settings/system/video output/video calibration
and i calibrated the screen to my liking. i noticed that the calibration changes back to default at random times. i can't determine when exactly this happens. my first thought was that maybe the setting changes after a reboot but it doesn't. it's very annoying having to connect a mouse just for this.