I upgraded to beta 3 Q and all was fine until this evening. I noticed AT&T was only showing 4g instead of the usual 4g LTE. I toggled the data switch on and off and now it prompts me to insert a Sim card. The card was never removed. Anyway, I reinserted the card and it still says insert a Sim card. I just tried the card in two other phones and it works fine. I tried rebooting my Pixel 3 and that did not work. How do I get it to recognize my Sim card again?