After 18.3.1 update, iMessages appear on Apple Watch but not on iPhone
iPhone updated to 18.3.1. Now iMessages appear on Apple Watch but not on iPhone. Problem appears with multiple single contacts (have not checked group threads). Tried rebooting both phone and watch; tried turning ICloud backup for messages off, reboot, restart both, turn iCloud backup back on, then sync now. Error persists.
iPhone 13 Pro Max, iOS 18