How do I stop iMesssages/texts sent to a group from Messages app on MacBook from starting a new group thread?
Whenever I try sending group iMessages on my MacBook using Messages, it keeps splitting into a new thread on our phones. There are 4 of us in the group that I've tried this with and it splits for all of us even though on my computer it is saying that I am sending to the original group that is custom named. One of the guys in the group is able to use his MacBook (same year/model/OS) without any problems of splitting, so we aren't sure what the problem is or how to fix it.
I have OS X Yosemite 10.10.2, but it's been doing this ever since iOS 8 and Yosemite first came out.
Thanks!
MacBook Pro (15-inch Early 2011), OS X Yosemite (10.10.2)