I am not receiving replies to Group Text messages only from "some" of my contacts. I can communicate with them on a single thread but do not receive their response on group chats. I am switching from an iPhone 5s and made sure the imessage is no longer associated with my cell #
For example: group texted my Wife and Mom and only received a message back from my Wife, did not see my Mom's response. They are both iPhone users and have never had this issue before.