Hi sooperduty,
Got it. Thanks for checking that. Just to confirm, is this group message a mix between iPhone and non-iPhone users? If so, this could be expected behavior.
From what you've described, it sounds like you thread is sending as a Group SMS instead of a Group MMS. When it's a Group SMS, those replies will come in as individual messages.
Types of group text messages
There are three types of group messages that you might see: group iMessage, group MMS, and group SMS.
The Messages app automatically chooses the type of group message to send based on settings, network connection, and carrier plan. For example:
- If you and your recipients are using Apple devices and iMessage is turned on, then the group message is sent as an iMessage.
- If you send a group message to people who aren't using iMessage, then the message is sent as an MMS or SMS message.
Group MMS
These messages appear in green text bubbles and go through your carrier instead of Apple. In a group MMS, everyone can:
- Send and receive photos and videos
- See all responses from the group
- Mute notifications

Group SMS
These messages also appear in green text bubbles and go through your carrier. Group SMS messages don’t support multimedia attachments, like photos or videos. All responses in a group SMS are sent as individual text messages and the recipients can’t see the other responses from the group.
Group iMessages go through iMessage. Group MMS and Group SMS go through your wireless carrier. It may be best to ask them about Group MMS so you can try to get these messages in one thread.
These messages also appear in green text bubbles and go through your carrier. Group SMS messages don’t support multimedia attachments, like photos or videos. All responses in a group SMS are sent as individual text messages and the recipients can’t see the other responses from the group.
Hope that helps you get this issue resolved!
Cheers!