iPhone 16 Pro + iOS 18, AirTags missing and won't add
Setup an iPhone 16 Pro with iOS 18, restored my my previous iPhone 15 Pro. Just noticed all my AirTags are gone from Find My. And I'm unable to add them back. Holding them near the phone doesn't work, and manually adding with the Add Item in FindMy doesn't find them. Tried "rebooting" an AirTag by opening and closing it (it beeps), but no luck. (I know the AirTag batteries are good. In fact, some were just replaced this week.)
iPhone 16 Pro, iOS 18