I own both a Teracube and a Teracube 2e. I recently upgraded to Android 10 on both devices. I live in Quebec, Canada and my phone carrier is Fizz. I have Canada wide coverage and everything was working properly on Android 9. Now on Android 10 when I leave Quebec I can no longer make phone calls, send text messages or connect to mobile data.
Here is the the info in SIM Status in Quebec and in Ontario: