Welcome and thank you for reaching out. 🤗
When older messages appear blank or only show timestamps after a major iOS update, it is usually because your iPhone is re-indexing your message history in the background to make it searchable.
This process can take anywhere from a few hours up to a day depending on the size of your message history. Your messages are safe and should reappear once indexing is complete.
What You Can Do:
While the best solution is often to simply wait and leave your device connected to Wi-Fi and power, you can try the following steps if the issue persists:
- Force Restart Your iPhone — A quick restart can clear up temporary display glitches in the Messages app.
- Check Your iCloud Sync — If you use Messages in iCloud, a weak connection can cause the phone to display empty placeholders while waiting for data to download. Ensure you are on a stable Wi-Fi network.
- Verify Date & Time Settings — Incorrect date and time settings can interfere with Apple's servers and message synchronization. Go to Settings ➢ General ➢ Date & Time and ensure Set Automatically is turned on.
If you need more help, contact Apple Support directly.
Good Luck! 👋🏼😉
Smiliñ 😎 Brian | Community Volunteer