RV50X - LTE CA not working

Yes, it’s selecting LTE band 3.

Here are the readings from ACEmanager:
RSSI: -49
RSRP: -83
RSRQ: -9
SINR: 6.6

I have a USB-stick modem that I can lock to band 20 and there RSSI is -53 dBm.

Thanks for your help!