Node-red restarts of their own accord?

[hepcat72]

yeaaaaah... guilty

[Colin]

@hepcat72

You know, I think that it's probably not worth debugging this further until I've done an update of node-red and it recurs.

I suggest using the recommended script to update node-red. Ditch pm2 and use the provided systemd scripts that you get with the script. Then you will have a conventional setup and we will have a much better chance of working out what is going on, if you still have a problem. I would not be surprised if it is pm2 that is causing the problem.