Cannot add rewards cards to an App that works with Apple watch

I fixed it by switching off my watch, (I never switch it off!) and switching it on again!

I was using Stocard and it worked really well with the cards on my Apple Watch as well. I don’t want to clutter my Apple Wallet with all the rewards cards. Is there another option to put rewards cards on the watch like Stocard did?

Did you make sure that these cards are supported?

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If you don't see an option to add your boarding pass, ticket, or other pass to the Wallet app, contact the merchant or company that issued it to make sure they support passes in the Wallet app.

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copied from: Add, use, and share boarding passes, tickets, and other passes in Apple Wallet - Apple Support

I used Stocard on my Apple Watch all the time too, but changed to Klarna as Stocard is being phased out. All my Stocard cards disappeared on my watch. Log48 user (above) suggested turning the watch off and then on again and suddenly, all my cards reappeared on Stocard. No idea if they'll eventually disappear again but at least they're there at the moment.

Excellent (why didn’t I think of that 🤦🏻).

Thanks!

Thank you so much!! This has fixed Stocard on my Watch after updating to Klarna

My cards havent disappeared so far!😂🤣 🤞