iPHone messages disappeared
Getting new messages. Old Messages still on iPad and Mac.
Question marked as
Hi there,
It sounds like your messages have stopped syncing between your trusted devices. Ensure iCloud for Messages is enabled for all of your devices by following the instructions in this support article: Set up iCloud for Messages on all your devices - Apple Support
If your messages aren’t syncing, check the requirements for Messages in iCloud and make sure your devices are up to date. See the Apple Support articles System requirements for iCloud, Update your iPhone or iPad, or Update macOS on Mac.