I fired up Xcode to try and get this working, and just on a whim decided to try one more time to see if magic occurred while I was asleep. In fact, it did! Somehow the weatherkit now works on my simulator. On to check it on testflight. @The app crashes every single are you working now? Perhaps Apple reset something on their end?

I tried the entitlements file thing. I’ll try the other stuff and get back at you. This really should not be so difficult. That said, thanks for helping.

Any help? I've spent a few hours now comparing the two apps, changing entitlement files, etc. I'm also using Cursor with premium calls to debug this, and having 0 luck.

Works like a champ on my test app. Perhaps my real app is so old that the configuration is messed up somewhere in there.

I will try that and let you know how it goes.