Monitor 1 shows power=0 while Monitor 2 shows correct values

[tombueng]

My Monitor 1 shows Power=0 for all channels even if there is current which is wrong.
Monitor 2 shows values correctly.

Voltage  / Freq  226V, 50Hz is shown on both inputs (both connect to the same phase)

Protocol -> Energy has the same values for Energy 1 and 2 for all of the values of Current Factor=0.5, Power Factor=1, Energy Factor=1

Firmware  v3.22.0

What might be the Problem?

Is there no OTA-Update available?  Do I need to connect a via USB PC to Update the Firmware?

[admin]

please take a photo of your screen.
KCS v3 only use by USB-C cable to download firmware.