Android is all of a sudden DEAD - getCustomerInfo doesn't work and getOfferings

Environment

• Output of flutter doctor

[√] Flutter (Channel stable, 3.19.1, on Microsoft Windows [Version 10.0.22621.3155], locale en-GB)
[√] Windows Version (Installed version of Windows is version 10 or higher)
[√] Android toolchain - develop for Android devices (Android SDK version 33.0.2)
[√] Chrome - develop for the web
[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.6.1)
[√] Android Studio (version 2022.3)
[√] VS Code (version 1.86.2)
[√] Connected device (4 available)
[√] Network resources

• Version of purchases-flutter

6.21.1

• Testing device version e.g.: iOS 15.5, Android API 30, etc.

Pixelel 4 / 7
API 33 / 34

• How often the issue occurs- every one of your customers is impacted? Only in dev?

Live and dev

• Debug logs that reproduce the issue

D/[Purchases] - DEBUG(19380): ℹ️ Debug logging enabled
D/[Purchases] - DEBUG(19380): ℹ️ SDK Version - 7.5.2
D/[Purchases] - DEBUG(19380): ℹ️ Package name - com.thrudayapp.thruday_app
D/[Purchases] - DEBUG(19380): 👤 Initial App User ID - 44650fcf-fc04-4274-9025-86da81be8e8f
D/[Purchases] - DEBUG(19380): ℹ️ Purchases configured with response verification: DISABLED
D/[Purchases] - DEBUG(19380): 👤 Identifying App User ID: 44650fcf-fc04-4274-9025-86da81be8e8f
D/[Purchases] - DEBUG(19380): ℹ️ Deleting old synced subscriber attributes that don't belong to 44650fcf-fc04-4274-9025-86da81be88e8f
D/[Purchases] - DEBUG(19380): ℹ️ App foregrounded
D/[Purchases] - DEBUG(19380): ℹ️ CustomerInfo cache is stale, updating from network in foreground.
D/[Purchases] - DEBUG(19380): Retrieving customer info with policy: FETCH_CURRENT
D/[Purchases] - DEBUG(19380): ℹ️ Updating pending purchase queue
D/[Purchases] - DEBUG(19380): ℹ️ Offerings cache is stale, updating from network in foreground
D/[Purchases] - DEBUG(19380): 😻 Start Offerings update from network.
D/[Purchases] - DEBUG(19380): ℹ️ Querying purchases
D/[Purchases] - DEBUG(19380): Request already scheduled with jitter delay, adding existing callbacks to unjittered request with key: BackgroundAwareCallbackCacheKey(cacheKey=[/subscribers/44650fcf-fc04-4274-9025-86da81be8e8f/offerings], appInBackground=false)
D/[Purchases] - DEBUG(19380): ℹ️ Updating pending purchase queue
D/[Purchases] - DEBUG(19380): ℹ️ Querying purchases
D/[Purchases] - DEBUG(19380): ℹ️ Found 3 unsynced attributes for App User ID: 44650fcf-fc04-4274-9025-86da81be8e8fSubscriberAttriibute(key=SubscriberAttributeKey('$email'), value=andy@pixelbin.com, setTime=Mon Feb 26 22:30:30 GMT 2024, isSynced=false)        
D/[Purchases] - DEBUG(19380): SubscriberAttribute(key=SubscriberAttributeKey('$displayName'), value=Andy Cresswell, setTime=Mon Feb 26 22:30:30 GMT 2024, isSynced=false)
D/[Purchases] - DEBUG(19380): SubscriberAttribute(key=SubscriberAttributeKey('$firebaseAppInstanceId'), value=2ad6b90895a966152a22675dcad73154, setTime=Mon Feb 26 22:30:30 GMT 2024, isSynced=false)
D/[Purchases] - DEBUG(19380): Product entitlement mappings are stale. Updating.
D/[Purchases] - DEBUG(19380): ℹ️ Listener set
D/[Purchases] - DEBUG(19380): ℹ️ Starting connection for com.android.billingclient.api.BillingClientImpl@dfbe16a
D/[Purchases] - DEBUG(19380): ℹ️ setEmail called
D/[Purchases] - DEBUG(19380): ℹ️ setDisplayName called
D/[Purchases] - DEBUG(19380): ℹ️ Billing Service Setup finished for com.android.billingclient.api.BillingClientImpl@dfbe16a
D/[Purchases] - DEBUG(19380): ℹ️ Updating pending purchase queue
D/[Purchases] - DEBUG(19380): ℹ️ Querying purchases
D/[Purchases] - DEBUG(19380): ℹ️ Cleaning previously sent tokens
D/[Purchases] - DEBUG(19380): ℹ️ Tokens already posted: []
D/[Purchases] - DEBUG(19380): ℹ️ Saving tokens []
D/[Purchases] - DEBUG(19380): ℹ️ Tokens already posted: []
D/[Purchases] - DEBUG(19380): ℹ️ No pending purchases to sync
D/[Purchases] - DEBUG(19380): ℹ️ Cleaning previously sent tokens
D/[Purchases] - DEBUG(19380): ℹ️ Tokens already posted: []
D/[Purchases] - DEBUG(19380): ℹ️ Saving tokens []
D/[Purchases] - DEBUG(19380): ℹ️ Tokens already posted: []
D/[Purchases] - DEBUG(19380): ℹ️ No pending purchases to sync
D/[Purchases] - DEBUG(19380): ℹ️ Cleaning previously sent tokens
D/[Purchases] - DEBUG(19380): ℹ️ Tokens already posted: []
D/[Purchases] - DEBUG(19380): ℹ️ Saving tokens []
D/[Purchases] - DEBUG(19380): ℹ️ Tokens already posted: []
D/[Purchases] - DEBUG(19380): ℹ️ No pending purchases to sync
D/[Purchases] - DEBUG(19380): Request already scheduled with jitter delay, adding existing callbacks to unjittered request with key: BackgroundAwareCallbackCacheKey(cacheKey=[/subscribers/44650fcf-fc04-4274-9025-86da81be8e8f], appInBackground=false)
D/[Purchases] - DEBUG(19380): ℹ️ setFirebaseAppInstanceID called
D/EGL_emulation(19380): app_time_stats: avg=90.27ms min=12.04ms max=555.66ms count=17
D/[Purchases] - DEBUG(19380): Billing connected with country code: GB

• Steps to reproduce, with a description of expected vs. actual behavior
  Other information (e.g. stacktraces, related issues, suggestions how to fix, links for us to have context, eg. stackoverflow, etc.)

Describe the bug

25/02/2024 - Android stops completing futures...

1. getCustomersInfo never completes
2. getOfferings never compeletes
3. Live and Sandbox
4. No changes to cause this

When loading the subscriptions page and I try to load offerings;

/flutter (19380): ---------------------------------------------
I/flutter (19380): [is configured, true]
I/flutter (19380): ---------------------------------------------
I/flutter (19380): Settings up offerings
D/[Purchases] - DEBUG(19380): ℹ️ No cached Offerings, fetching from network
D/[Purchases] - DEBUG(19380): 😻 Start Offerings update from network.
D/[Purchases] - DEBUG(19380): Same call already in progress, adding to callbacks map with key: BackgroundAwareCallbackCacheKey(cacheKey=[/subscribers/44650fcf-fc04-4274-9025-86da81be8e8f/offerings], appInBackground=false)
D/[Purchases] - DEBUG(19380): Request already scheduled with jitter delay, adding existing callbacks to unjittered request with key: BackgroundAwareCallbackCacheKey(cacheKey=[/subscribers/44650fcf-fc04-4274-9025-86da81be8e8f/offerings], appInBackground=false)

And the code that produces the above debug log

@override
  void initState(){
    super.initState();

    Purchases.isConfigured.then((isConfigured) async {

      print('---------------------------------------------');
      print(['is configured', isConfigured]);
      
      // this never returns or completes!!
      print(['customerInfo', await Purchases.getCustomerInfo()]);
      
      if(await Purchases.appUserID != AuthedUser.get!.id){
        // login the user
        await Purchases.logIn(AuthedUser.get!.id);
        // ensure we have the latest customer info
        Provider.of<AppPurchaser>(context, listen: false)
          .updateCustomerInfo();
      }

      // ensure we can make payments
      if(await Purchases.canMakePayments()){
        // get our offerings for selected
        setupOfferings();
      } else {
        print('cant make purchases');
      }
    });

  }

  void setupOfferings() async {
    try {

      print('---------------------------------------------');
      print('Settings up offerings');
      
      // this does not return or complete!!
      offerings = await Purchases.getOfferings();
      

      if (offerings!.current != null) {
        
        if(null != offerings!.current!.monthly && null != offerings!.current!.annual){
          setState(() {
            subscriptions = [
              offerings!.current!.monthly!,
              offerings!.current!.annual!
            ];
          });
        }

      } else {
        FirebaseCrashlytics.instance.log('No offerings loaded, offerings: $offerings');
        
        setState(() {
          _error = 'There seem to be no offerings available at the moment. Please try again later.' as PlatformException;
        });
      }

    } on PlatformException catch (e) {
        FirebaseCrashlytics.instance.log(e.toString());
        setState(() {
          _error = e;
        });
    }
  }

I've checked the profiler, I see no network requests being made at all...
Network requests to my own custom API backend works
If I manually query the subscriber endpoint using POSTMAN, offerings return
Problem is only on Android, offerings / system works fine on Apple
No changes with in Play Developer to cause this

Literally, started for no reason

Additional context

I got to a point where I started going through commits and got it down to where I updated the versions of;

flutter_keyboard_visability: 6.0.0
wolt_modal_sheet: 0.4.1
flutter_quill: 9.2.12

I have epilepsy, I am struggling after this - I will further figure out tomorrow which of this plugins caused this.

I have analysed the rest of the commit and there is nothing that could stop network requests getting through.

Day 3: I have now added back in the above plugins, cleaned the installation and tried again - still working so, there is two possibilities here;

1. The problem was with RevenueCat and they silently fixed it
2. Something corrupted the installation when trying to apply the above plugins

I have obsessively checked all commits, nothing there could have caused this - I am lost for words and can't even offer any help to someone facing the same problem.

The report names no repository files or tests; start by reproducing on Android with Flutter 3.19.1 and purchases-flutter 6.21.1, using the logged calls to Purchases.getCustomerInfo() and Purchases.getOfferings(). Trace the Android request path around the stalled futures and compare it with the working Apple path. Done means identifying a reproducible cause and confirming that both calls complete or return an actionable error.