Hi,in my case it was the /usr/local/bin/python3 /usr/local/opnsense/service/configd_ctl.py -e -t 0.5 system event config_changed (python3.7) process. Killing it, solved the issue for now.KH
I had confirmed it was this process: /usr/local/bin/python3 /usr/local/opnsense/scripts/netflow/flowd_aggregate.py (python3.7). A Netflow reset seems to have resolved the issue for me at the moment.