I've been able for quite some time to compatibly send/receive texts on my iPhone 13 simultaneously with my MacBookAir. Recently, when I text a friend with an Android and with whom I text frequently, somehow I can't text him from my MacBook Air (shows up as red text and (!) mark), but I can text him from my iPhone.
For another reason, I had to recently reset all my Notifications. I'm working through updating everything, but could that have somehow been the cause of my trouble?
How do I sync the iMessage/Text function on my iPhone and Mac, when it was working perfectly before?