I'm seeing a Live Activity that successfully starts via Activity.request() — activityState returns .active, a valid ActivityKit push token is issued and works correctly — but nothing ever appears on the Lock Screen, and the widget extension process never shows up in Xcode's Debug → Attach to Process list (the main app process does appear). This happens consistently across many clean rebuilds.
Setup:
Flutter app (using the live_activities Flutter plugin, which wraps ActivityKit) with a native iOS Widget Extension target for the Live Activity
Xcode 26.5, iOS 18.7.9 on a physical iPhone XS Max
Bundle ID: com.santitech.foodboda, extension: com.santitech.foodboda.FoodbodaLiveActivity
NSSupportsLiveActivities = YES confirmed in both the main app's Info.plist and the extension's Info.plist (verified in the compiled .appex binary itself, not just source)
App Group entitlement confirmed present in both compiled provisioning profiles via security cms -D on embedded.mobileprovision
Deployment target 16.6 on both targets (Live Activities require 16.1+)
Settings → [App] → Live Activities toggle confirmed ON; Low Power Mode OFF
What I've already ruled out:
Target membership of Swift source files — confirmed correct in File Inspector
WidgetBundle only references the real Live Activity widget (removed unused Control/home-widget/AppIntent boilerplate)
Info.plist NSExtensionPointIdentifier = com.apple.widgetkit-extension — correct
Built a brand-new, separate, minimal test app+extension from Xcode's default template, using the exact same Attributes/ContentState/SwiftUI view code as the main app (copy-pasted verbatim) — this minimal test successfully renders on the Lock Screen on the same physical device. This proves the Swift code itself, the device, and the Apple ID/provisioning are all capable of supporting Live Activities correctly.
Confirmed areActivitiesEnabled() returns true and getActivityState() returns .active on every test
Tested with full app delete + device restart + DerivedData wipe between attempts — no change
Question: Given that identical code works in an isolated minimal project but not in the main app's bundle ID, what could cause this specific symptom — ActivityKit registering an activity as active while WidgetKit never instantiates the extension to render it — tied to one specific app/bundle identifier rather than the device or account in general? Is there a known interaction with App Groups that have been reconfigured many times during development, or any way to fully reset WidgetKit's registration state for a specific bundle ID short of changing the bundle identifier entirely?
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