Cellular Monitor not working as expected

I am trying out the Thingy91.

I'd programed the Thingy91 with the steps of 52840, modem firmware, and 9160 (using the latest pre-built firmware of thingy91_fw_2023-06-01_0677b099, modem version 1.3.5)

A locally purchased SIM card is inserted into the SIM slot of the Thingy91.

The thingy91 is testing in house so the GPS might not receiving signals.

My PC is Macbook (intel CPU) with OS version 13.4. 

As I run the LTE Link Monitor (v.2.0.4), I can see the thingy91 can be correctly accessed.

 LTE Link Monitor

Since this App is marked as deprecated, I switched to Cellular Monitor, but it will keep running on the following screen.



Not sure what I miss, please advice.

Thank you!



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