Lost capability to text: Contacts show sip:[phone number]@msg.pc.tmobile.com;user=phone

Same exact issue!  Happened about a week ago.  My husband and I can't text our daughter.  She can text us but comes through with the SIP # and won't let me update her contact.  I've deleted her contact and try to put her back in, but nothing!  Neither of us can text her. It's the only contact we have an issue with.  Seems to be families on the same plan have an issue with one contact on the plan who has a different phone.  This is supper frustrating and needs to be fixed TMobile!  We had sprint and never had an issue like this!