Either a kernelupdate or a thermald update.
I've seen several people on internet with the same or comparable issue, even on intel CPU's
Once in a while ? That sounds like a race condition.
There is a possibility that thermald is started too soon.
try restarting the thermald.service and see if that works:
sudo systemctl restart thermald.service
if that works you can edit the thermald.service to start a bit later by adding a sleep command:
sudo systemctl edit thermald.service
and add this in the uncommented region:
[Service]
ExecStartPre=/usr/bin/sleep 3