LoRaPHY different attributes between tx and rx

Hi everyone,

I am trying to make a LoRaWAN network using Mbed OS stack. I have noticed some differences between LoRaPHY tx and rx:

In FSK mode rx_config configures iq_inverted as false, while
tx_config configures it as false. OK, it’s the same for both sides.

But In LoRa rx_config configures iq_inverted as true, while
tx_config configures it as false.

I cannot make a communication with this configuration, but if change the iq_inverted parameters, it works as expected.

Why in LoRa modulation iq_inverted is changed from tx to rx? Could anyone give me a hint?