Having difficulty texting droids
My phone is having difficulty texting non-iPhones for the first time. It happened when I switched over from the iPhone SE to the iPhone XR. I get the message, "Not Delivered" immediately when I text a new droid phone. For three different people, if they call me and they text me while they are talking to me on the phone, it will let me start texting them. If we aren't on the phone when it happens, I cannot respond to texts. Apparently this problem doesn't affect group texts - i.e. I have been able to text droid users on a group text, but not been able to text the same individual independently.
I have turned off and on my phone
I have made sure imessage and MMS texting is enabled
I have signed out of my apple id and signed back in
Nothing else seems to work.
iPhone XR