Some messages not showing up on my iphone.
I got a new iphone 11 recently and am finding that there are two different message threads for the same person (one on the iphone and a different thread in my computers' Messages). Therefore I cannot see the message that my computer received on my iphone which is becoming very troublesome. I checked my Contact info for the person on the iphone and computers and they look to me the same (they should be iCloud Synced).
Is it me or them? What to do? A remedy would be appreciated?