Here are a few things you can try to troubleshoot the inconsistent bubble colors in your group iMessages:
- Make sure everyone in the group conversation is updated to the latest iOS version. Different iOS versions can cause weird bubble issues.
- Try turning iMessage off and then on again in Settings on your iPhone 14. This resets the iMessage connection and can resolve glitches.
- Go to Settings > Messages and make sure Group Messaging is enabled. This allows group conversations over iMessage.
- Double check that your Son's iPhone 7 and your Wife's iPhone 8 are still able to send/receive iMessages. Older iPhones may default to SMS.
- Remove all participants from the conversation and start a new group iMessage thread. This resets the chat.
- As a last resort, you can backup your iPhone and do a factory reset. This will wipe any corrupted iMessage cache data.
The inconsistency is likely an iMessage bug or glitch. Doing a network reset on your devices usually resolves any weird bubble issues in my experience. Let me know if the problem persists after trying the steps above!