No, I had this issue on an older version of Unraid (I'm not sure which but I think it was 6.12.2), then upgraded and still saw this issue weeks later. I did reboot after upgrading.
I upgraded to 6.12.4 (and rebooted) yesterday, but it's still happening:
$ inotifywatch -r -t 30 /boot
Establishing watches...
Finished establishing watches, now collecting statistics.
total access close_nowrite open filename
2088 696 696 696 /boot/config/shares/
310 124 93 93 /boot/config/
187 119 34 34 /boot/
78 26 26 26 /boot/config/plugins/dynamix/
40 20 10 10 /boot/config/plugins/dynamix/notifications/agents/
40 20 10 10 /boot/config/plugins/dynamix/notifications/
2 0 1 1 /boot/config/plugins/dynamix.my.servers/
I haven't been able to catch which process is causing this using lsof or watching /proc, as the files seem to be opened and closed very, very quickly.
(P.S. I am healthy-slat5620, my previous posts were accidentally from a new account as I logged in using Google instead of email)