Might be unrelated, but:
I had my system going bananas here the other day, terminating with an out of memory error.
OH2 restarts and even PC reboot had OH2 hogging 400% CPU.
Turned out it was a Chrome Browser Tab open with Basic UI during a restart/reboot that caused it.
Closed the Browser tab, and things settled.
The connection was from my workplace through nginx, but i think I have seen it once on a direct LAN connection as well.
Snapshot from a few days ago.