Tuya Power Meter value unknown

I have an (TuYa TS0601_din control via MQTT | zigbee2mqtt.io) Power meter and it’s connected to zigbee2mqtt, with a lot other devices that work perfectly. Also this device worked great, yesterday I discovered that one entity (_energy) isn’t working anymore and gives back the unknown information. The strange thing is, that if I open another entitiy of that same device and I look into the attributes, it’s providing the correct data, and it’s updating the data. I cannot find out why this happens.