Initializing Google Mobile Ads SDK leads to runtime crashs.
We are currently counting ~60k crashes for ~10k users since today at 2pm (CET).

It happens on multiple apps/device/OS, multiple versions of Google Mobile Ads SDK, multiple versions of Google Play Services.
This looks like a Google Play Service remote configuration issue.

The stacktrace cause is: Caused by java.lang.ClassCastException java.lang.Integer cannot be cast to java.lang.String

And here is an example of a full stacktrace:

android.app.SharedPreferencesImpl.getString (SharedPreferencesImpl.java:288)
com.google.android.gms.ads.internal.scionintegration.a.onSharedPreferenceChanged (:com.google.android.gms.policy_ads_fdr_dynamite@240304709@240304704034.602821767.602821767:73)
com.google.android.gms.ads.internal.scionintegration.m.a (:com.google.android.gms.policy_ads_fdr_dynamite@240304709@240304704034.602821767.602821767:106)
com.google.android.gms.ads.nonagon.a.s (:com.google.android.gms.policy_ads_fdr_dynamite@240304709@240304704034.602821767.602821767:439)
com.google.android.gms.ads.nonagon.a.b (:com.google.android.gms.policy_ads_fdr_dynamite@240304709@240304704034.602821767.602821767:5)
com.google.android.gms.ads.ChimeraMobileAdsSettingManagerCreatorImpl.getMobileAdsSettingManager (:com.google.android.gms.policy_ads_fdr_dynamite@240304709@240304704034.602821767.602821767:52)
com.google.android.gms.ads.internal.client.bx.bR (:com.google.android.gms.policy_ads_fdr_dynamite@240304709@240304704034.602821767.602821767:40)
m.ajn.onTransact (:com.google.android.gms.policy_ads_fdr_dynamite@240304709@240304704034.602821767.602821767:21)
android.os.Binder.transact (Binder.java:914)
nwk.gL (:com.google.android.gms@240713022@24.07.13 (100400-607434947):8)
com.google.android.gms.ads.internal.client.ay.getMobileAdsSettingManager (:com.google.android.gms@240713022@24.07.13 (100400-607434947):12)
com.google.android.gms.ads.MobileAdsSettingManagerCreatorImpl.getMobileAdsSettingManager (:com.google.android.gms@240713022@24.07.13 (100400-607434947):42)
com.google.android.gms.ads.internal.client.az.fL (:com.google.android.gms@240713022@24.07.13 (100400-607434947):40)
nwl.onTransact (:com.google.android.gms@240713022@24.07.13 (100400-607434947):101)
android.os.Binder.transact (Binder.java:914)
com.google.android.gms.internal.ads.zzatv.zzbg (com.google.android.gms:play-services-ads-base@@22.4.0:2)
com.google.android.gms.ads.internal.client.zzcp.zze (com.google.android.gms:play-services-ads-lite@@22.4.0:4)
com.google.android.gms.ads.internal.client.zzeq.zza (com.google.android.gms:play-services-ads-lite@@22.4.0:3)
com.google.android.gms.ads.internal.client.zzaq.zzc (com.google.android.gms:play-services-ads-lite@@22.4.0:11)
com.google.android.gms.ads.internal.client.zzax.zzf (com.google.android.gms:play-services-ads-lite@@22.4.0:1)
com.google.android.gms.ads.internal.client.zzax.zzd (com.google.android.gms:play-services-ads-lite@@22.4.0:11)
com.google.android.gms.ads.internal.client.zzej.zzA (com.google.android.gms:play-services-ads-lite@@22.4.0:3)
com.google.android.gms.ads.internal.client.zzej.zzn (com.google.android.gms:play-services-ads-lite@@22.4.0:8)
com.google.android.gms.ads.MobileAds.initialize (com.google.android.gms:play-services-ads-lite@@22.4.0:2)