Thank you, this is all really helpful and appreciated. Cheers

I can't access that link 😞

For reference, the release notes mention this issue being specific to SwiftUI Maps. I'm having the same problems with Swift Charts. iOS 26 RC, am having to ship a workaround as you suggested. Thanks

Are you able to run the same test on the 26.2 latest beta for us? Thanks

If the user has a complication for your app on their watch face, could you use the wigetkit extension to do the HealthKit work for you? It would run more reliably but might not fit your needs.... (plus you have to ask them to have a complication, many apps do!)