I have a Pixel 3xl and as of 11/9/2020 I haven't been able to text one person. I was texting with this person reliably for years until then. The person has an apple phone on Sprint. I mainly use the default pixel messaging app, but I've tried verizon messaging app. I tried adding 1 and +1 in front of the number, and restarting my phone. I am able to call this person, just not text! I get the error message "Not sent. Tap to try again." Help!