confirm that the param name has not changed.
also some options like battery sometime require a double load, as they only show the extra params after you have enabled the option.
I had a similar issue in the past and determined that the SR1 parameters change based on how you connect to the copter, I believe they automatically change depending on whether you connect via usb or a telemetry radio so you shouldn’t have to worry about setting those manually. I can also never get my Battery monitor parameters to restore, usually just go in and set them manually. Compass Declination I believe sets itself at reboot as well so that is likely why it is different.
I would say the concerning ones are the ATC params and the EKF mask, never had problems with those.
I uploaded firmware 4.0 and rc preflight errors are gone the config file is now 18k was 14k.
everything seem good now but here is a image of the compair issue i had.