I've also noticed the Other error starting in September,

I am experiencing this as well in Xcode Version 15.3 (15E204a). If I create a new project they build previews and tests just fine. I have tried to figure out the different in build settings or scheme to see if there is anything I need to update, but I couldn't find it.

Experiencing this for the first time in Xcode 15.3. Is there a workaround? Why is this happening?

If I use an inferred mapping model the duplication issue does not occur. If I create a new mapping model with no changes to the generated Xcode file, the issue still occurs.

@pdm I'm not seeing that behavior on iOS 14. I'm changing the date to 11:59 PM, and attach the debugger to my widgets, but their views, and timeline aren't refresh automatically. My timeline is supposed to refresh .after(midnight) which isn't happening.

You won't be able to change supportedFamilies based on an in-app purchase, but there are already many apps that have unlockable widgets and widget features based on subscriptions / in-app purchase. You'll have to show all the widgets, but can show the locked view if they haven't unlocked it yet. It sounds like maybe the widget isn't getting the correct value from keychain? Might have to find another way to verify.

If I call `refresh(object, mergeChanges: false)` the object is how I expect it to be. I have another class observing context saves and calling `mergeChanges(fromContextDidSave:)` which is being called. Why would the object still not be refreshed?