iOS 12.0.1 is out. Still no fix nor an effective and repeatable workaround for this issue. Apple needs to give this issue the attention it deserves...and soon.
Possible fix?
Apologies if someone's already pointed this out, but I wanted to pop back into the thread to update on a fix that, for now, seems to be working.
Recap:
1. I have six family phones on my account, each logged in under its own unique Apple ID for quite some time before IOS 12 and the cross-texting issue. The "get your own Apple ID" suggestion was not a solution for me.
2. Only three of the six lines in the family were having an issue.
3. We discovered that, despite the affected three phones displaying a unique Apple ID (Settings>>select Apple ID under the picture on the first screen), when looking at the "Send & Receive" screen in the iMessages app (the screen that allows you to select the phone numbers used by the phone), the three impacted phones were all still displaying the same primary Apple ID (the one on my phone from back in the pre-Family Sharing days when we all shared one Apple ID).
4. The other three non-affected family phones correctly displayed the user's unique Apple ID inside the iMessage app.
5. From the iMessages setting, we logged out the two affected phone and re-logged them in under their correct Apple ID.
6. The problem seems to have resolved itself for now.
So, even if you switch your phones to unique Apple IDs (or already had them set that way before IOS 12), try double-checking:
Settings>>iMessage>>Send & Receive. Make each phone is in fact on its individual Apple ID inside the Messaging app.
Hope this helps.
p.s. When we switched to unique Apple IDs some time ago, none of us individually set the iMessage "Send & Receive" screen. For some reason, two of the six phones didn't switch over (mine never changed as it was the original primary/shared Apple ID).
I'd say that's why one has the option to select which devices and addresses share messages in the Settings, where it's always been. So, I really think this is a bug.
I have friends who the same Apple ID for their entire family, they’ve updated, and they’re not experiencing this problem. Screams bug to me.
...and after 5 days strings merging again on some phones...Apple if you are monitoring this, hopefully you’re working on it. Would be great to have any sort of acknowledgement, fix timeline, etc.
I’m getting the same thing as well. I set up different Apple IDs for the family and still get the same issue.
Hmmm. Does anyone else agree that 12.0.1 fixes this problem? There has certainly not been any acknowledgement in the release notes. I am cautiously optimistic, however.
Has there been a solution to the issue?
IOS 12.0.1 did not fix the problem.
APPLE - what is the ETA for a fix for this?
Messaging has been rendered unusable for my family. Ridiculous.
Believe what you will.
They may have never supported it, but they didn't stop it from happening. This is apples issue not the millions of people - mostly family's (before home share was out) that did this.
I have the same problem. I have turned messages off and on, logged out, and restarted more times than I can count. Please advise as soon as possible. HELP!!!
I upgraded my wife's phone to 12.0.1 last night and that did not fix the problem.
Look here, the settings described may provide a proper repair.
I’ve had the same issue with AirDrop, even after everyone was on their own AppleID. There is a bigger problem here than just IDs.
Why is iMessage combining two contacts into one thread. I can only text back the last one that messaged me. This started with iOS 12