iMessage issues after iOS 27

Hi there

Please try this

Re-trigger iCloud Sync: Go to Settings > [Your Name] > iCloud > Show All (under Saved to iCloud) > Messages, toggle it Off, wait a minute, and toggle it back On. This forces the local SQLite chat database to rebuild and pull missing thread histories from Apple’s servers. 

Deep Reset iMessage & FaceTime: Go to Settings > Apps > Messages (or Settings > Messages), toggle iMessage off, then do the same for FaceTime under its settings menu. Restart your iPhone 14 Pro, then turn both iMessage and FaceTime back on to re-establish a clean token registration with Apple activation servers. 

Verify Send & Return Routing: In Settings > Apps > Messages > Send & Receive, make sure your correct phone number has a checkmark and isn't greyed out or overridden by an email address. If it is glitching, sign out of your Apple ID at the top of Settings and sign back in to refresh authorization credentials. 

After updating my iPhone 17 to iOS 27.0.1, I experienced serious delays sending photos through Messages. Photos sometimes failed to send or took several minutes to appear on my Mac. Even ordinary text messages were delayed.

Here’s what worked for me:

1. On the iPhone, go to Settings > [your name] > iCloud > Messages in iCloud and confirm “Use on this iPhone” is enabled.
2. On the Mac, open Messages > Settings > iMessage.
3. Check “Enable Messages in iCloud.”
4. Click “Sync Now” if available.

On my Mac, this setting had been disabled.

After enabling it, both text messages and photos appeared almost immediately. Emailing photos also worked normally afterward.

I can’t confirm this will fix everyone’s problem, but it resolved mine without resetting network settings or reinstalling anything.

Upgrading to iOS 27.0.1 (from 27.0.0) seems to have resolved this issue for me. Will keep monitoring. Others in this thread have reported that this has not fixed their issues, so I don't want to promote this as a definitive solution.

I’m having the exact same issue, and it’s been happening ever since updating to iOS 27. It’s incredibly frustrating.

I’ve tried just about everything at this point:

• Restarting my iPhone multiple times

• Turning iMessage and FaceTime off and back on

• Resetting network settings

• Deleting entire message conversations

• Checking and reselecting my phone number under Send & Receive

• Troubleshooting with both Apple and Verizon

• Having Verizon issue and activate an entirely new eSIM

• Checking my Apple Account settings and attempting to remove and re-add my phone number

The most frustrating part is that some of these fixes temporarily work. iMessage and FaceTime will successfully activate with my phone number, everything will function normally for a while, and then, seemingly at random, the activation fails again. My phone number becomes unchecked under Send & Receive, messages to other iPhone users switch to RCS, and FaceTime stops working properly.

This can happen even when I’m connected to Wi-Fi.

Verizon has confirmed that everything looks fine on their end and has already replaced my eSIM, but the problem persists.

Apple Support has been equally frustrating. They’ve told me that they can only escalate the issue if I call while it’s actively happening. Since the problem is intermittent, I’m apparently expected to wait for it to break again and then immediately contact support.

At this point, I’ve spent hours troubleshooting something that worked perfectly before the update. It’s ridiculous that such a basic function of the iPhone has become this unreliable.

I’m curious how many other people are experiencing this and whether Apple has even acknowledged that there’s a larger issue.

This is also happening for me on my iPhone 15 pro. The only way I can find the messages is on my mac, but I have to know that I'm missing a message.

I've tried the deep reset of imessage and icloud to no avail.

I began experiencing this same issue during an iOS 27 beta and was hoping the final release would address. I have tried all of the suggestions and sometime it will temporarily resolve the issue but ultimately comes back and nothing shared to date resolves the issue. I am using an iPhone 17 Pro Max for reference.

Having the same issue on my iPhone 16 Pro.

> Thanks. I’ve actually already tried the iCloud Messages toggle, iMessage toggle, Send & Receive checks, Airplane Mode, and restarting. Restarting is the only thing that temporarily fixes it. The issue comes back when I go offline and reconnect, so I’m trying to find a fix beyond the usual sync/activation steps.

^^ exact same commentary applies here. Have also already tried factory resetting network settings (mentioned on a reddit thread somewhere) to no avail.

My iphone 13 still has my messages (but for a second may flash empty message warning). But my iPhone refuses to sync with my Mac. It has synced for years with no issues, not Mac is empty. I tried disabling Mac "device" then enabling and clicking "sync now"; nothing yet. Really frustrating that the most bsic regression testing isn't followed at Apple anymore. Update to 26 last year has similar big issues with FaceTime and wallet.

I have the same issue of messaging and it’s saying not delivered but yet the person received it. This is very frustrating. I’ve done all the up fixes that it says to do. Nothing seems to fix my issue.

I also tried all of the above and noticed that messages would go through iPhone users, but not to android users. I also noticed when I type in the name, I noticed that iPhone user’s name is blue and when I type in an android’s name, it is red. I also noticed when I type in the name, I noticed that iPhone user‘s name is blue and when I type in an android’s name, it is red. It cross my mind that I cannot send group text messages because some of the names are android users. Can you please resolve this issue as I think it is a software problem. Please send an update for this problem.

Exact same thing is happening to me on my 18 pro max

After the ios 27 update I can't go to Photos and send to someone using the Message app, but if i start in the Message app i can use the + button to add a photo to the text message and send it

Me too, but only after 27.01, which suggest it's not only NOT fixed, but it's worst now!