Hi @Jon, happy new year! Hope you have had a good Christmas break.
I am continuing to try and take steps to debug and fix this issue. I have made a change to the mqtt_input script to move to running it as a systemd service rather than init.d. I have posted this on another thread, please could you run emonPi update to pull in the changes and continue to monitor. Sorry it’s taking so long to try and fix this issue.