The watchOS 8.4 and iOS 15.3 updates were not without bugs: users around the world complain about problems with adding and using cards in Wallet, as well as Apple Pay. In addition, there are complaints about the synchronization of maps with smart watches and iPhones.
According to owners of Apple Watch and iPhone smart watches, after updating to new versions, they cannot link cards to Wallet. If the linking process occurs, the maps are not synced to Apple Watch. When you remove a card from your iPhone, it may not disappear from your watch, and vice versa.
It’s a pretty hot topic on the Reddit and Twitter forums right now, so if you’re experiencing this problem, you’re not alone. Apple seems to be looking into this issue and should release a patch soon to fix the bug.
A source: iMore