iPhone 15 updated to iOS 17.2 and thereafter message syncing with iCloud is paused.

Okay so this to follow up for the original comment posted on this thread…

I have spoken to the senior technical team for 2 days, and following are the results:

Day 1:

Troubleshooting techniques used during screen sharing session:

• Turn Off/On ‘Messages in Cloud’ - using settings -> Profile -> iCloud
  • This technique has yielded no difference
• Sign Out/In from iCloud
  • This technique has yielded no difference
• Settings -> General -> Background App Refresh = Off
  • • After turning off the background spp refresh, try manual ‘Sync’ for ‘Messages in iCloud’
• As per the technical support team, this has worked for most of the users, but didn’t work out for me.

Day 2:

• Restore iPhone/iPad using Finder/iTunes
  • • Take backup of your iPhone using iCloud or Mac/Windows
    • Post restore set it up as new iPhone.
    • Login to iCloud, finish setting up the phone.
    • Go to ‘Settings’ -> ‘User Name’ -> ‘iCloud’ -> ‘Show all’ -> ‘Messages in iCloud’ ->turn it ‘On’
    • Now let wait for the sync to be complete
    • Intermediately it will show you ‘Syncing paused’ based on the sheet amount of messages already backed up earlier.
• Try clicking on ‘Sync’ it should resume where it earlier left off.

After this restore, and then manually backing up/sync the Messages in iCloud worked perfectly for me. For other devices such as iPad & Mac the issues persists until you restore it.

It’s been 2 days and the issue hasn’t creeped back yet. Will keep this thread updated if I find something new.