Solved: In my development debug Scheme, I had a leftover StoreKit Configuration in the Scheme Options. The fix was to set StoreKit Configuration to "None". The latent StoreKit config was masking the App Store Connect products.

New information ... I made a text change to an existing subscription product. This does show when running the released app, but does not show in the development sandbox app. I tried clearing the app cache ("DerivedData"), restarted development machine, double-checked the bundle IDs. It appears that the App Store price changes are not propagating to the sandbox environment.

Hi App Store Commerce Engineer, Thanks for responding. I have submitted an FB: FB12654744

Hi, Thanks for the suggestions .. Yes, restarted device, tried on a real device. New subs is in the same group (there is only one). I will try to file a ticket at feedbackassistant.com