Modbus Energy Meter wrong measurment

Hello,
I run a lot of Teltonika routers, they read out electronic electricity meters via Modbus TCP or RUT.
The models include Rut956, 241 and 240.
Now that I have been receiving data for a long time, I noticed that the values ​​are false from certain registers. However, I read these registers to a Raspberry I get the correct values.
In detail, it is about the tabs of the meter stand for reference and feeding, here the value does not change with increasing values, partly the read figures drop.
I checked all the setting for the registers in the Modbus Client, this problem also occurs with another manufacturer (WAGO).

I read the register as a 32Bit float with the boundary order 3.4,1,2 get a value, but if this is selected with the Raspberry I use the order 1.2.3.4.

I can’t explain where the mistake comes from, maybe someone can help me?

Hello,

I have reached out to our RnD team regarding this issue. I will update you as soon as I receive any feedback from them.

Thank you for your patience.

Best regards,