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energy measurement broken in latest dev version with MTS0121_plug (poll)

See original GitHub issue

Hi,

I’m runing the latest dev version (this to be specific) and the energy reporting doesn’t seems to work consistent.

I have 5 BlitzWolf SHP13 energy plugs in my zigbee network which support energy measurement via poll and the measurment worked fine until a few days(?) ago. It looks like that only a single device gets updated correctly now. All other 4 devices doesn’t seem to get updated energy measurements?

I saw the commit that changed the default poll interval to 60 seconds so I configured it back to 30 seconds (later to 15 sec for faster debugging).

This is my current devices config:

devices:
  '0x842e14fffe359b2e':
    friendly_name: niklas/plug/pc
    measurement_poll_interval: 15
  '0x842e14fffe3665fb':
    friendly_name: niklas/plug/monitor
    measurement_poll_interval: 15
  '0x842e14fffe3665eb':
    friendly_name: bathroom/plug/prusa_light
    measurement_poll_interval: 15

To quickly debug I switched back to the latest stable version 1.16.2 and everything worked again. Here is how it looks in Home Assistant:

After that I switched back to the latest dev version and now only a single device (niklas/plug/pc) gets updated every 15 seconds:

I did enable the debug log but I can only see log entries for the niklas/plug/pc device. So there was not even an attempt to update the energy metrics from the other devices.

I don’t know how the internals work in zigbee2mqtt but my guess would be that the poll event loop is buggy and only checks the first device in the device config list?