Deleted/changed files being restored after reboot

Hi there,

I'm new to Manjaro and I've just flashed my Odroid N2 with it.
I'm having a little issue that looks really stupid.

Deleted files are coming back after reboot.
I made same changes to sshd_config and also deleted the /etc/motd, but once I reboot, sshd_config returns to its original values and motd comes back from the grave.

Is this something I forgot doing?

Thank you in advance and tks to Maanjaro community for providing images for SBC.

cheers,
Rafael Oliveira

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