X S and X S Max are barely one month, yet both have a serious problem in Messages when sending friend with SE/MMS than iMessage,  "Number changed to primary" style appeared in front of each and every message.
The iPhone X S and X S Max are barely one month old, yet both have a serious problem in Messages. When sending a friend an SMS/MMS text rather than an iMessage, the phrase "Number changed to Primary" appears in front of each and every message.