Shelly 3EM negative values in comparison with Shelly EM

Information:

I have one Shelly 3EM and several Shelly EMs.

I tested them on one-phase net.

All current transformers are connected in the same direction (K -> L) on the same wire.

Shelly EM power consumption in GUI is positive but Shelly 3EM is negative (all 3 phases).

Shelly 3EM transformers (120 A) have connectors, Shelly EM transformers (50 A) have red/black wires.

What is going on?

Edit 29.1.2022 - the two original photos of the wiring disappeared, so I am including them again. That explains to thgoebel - no clamp is skewed - all clamps are located in the same direction on the same (single) wire.

And you can see that also phase wires are correctly connected.

And all EM read +109 W while 3EM reads -109 W.

Edit 29.1.2022 (No. 2) - And now I am adding printscreens of devices' GUI.