I have just reproduced it on my device. I used case with two users. When I was creating the second user my launcher app (that uses play services) had the same error with the following stacktrace:
71 15834-15973/com.keypr.launcher E/DynamitePackage: Failed to load ads dynamite module.
android.os.RemoteException
at cyv.<init>(:com.google.android.gms:4)
at cyv.a(:com.google.android.gms:0)
at com.google.android.gms.ads.AdLoaderBuilderCreatorImpl.newAdLoaderBuilder(:com.google.android.gms:4)
at com.google.android.gms.ads.internal.client.ad.onTransact(:com.google.android.gms:9)
at android.os.Binder.transact(Binder.java:387)
at com.google.android.gms.b.gx$a$a.a(Unknown Source)
at com.google.android.gms.b.gf.a(Unknown Source)
at com.google.android.gms.b.gp.a(Unknown Source)
at com.google.android.gms.ads.AdLoader$Builder.<init>(Unknown Source)
at com.keypr.commons.ads.a$2.a(Dfp.java:53)
at com.keypr.commons.ads.a$g.call(Dfp.java:1319)
at rx.internal.operators.SingleToObservable.call(SingleToObservable.java:39)
at rx.internal.operators.SingleToObservable.call(SingleToObservable.java:27)
at rx.f.unsafeSubscribe(Observable.java:10346)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30)
at rx.f.unsafeSubscribe(Observable.java:10346)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30)
at rx.f.unsafeSubscribe(Observable.java:10346)
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51)
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35)
at rx.f.unsafeSubscribe(Observable.java:10346)
at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:94)
at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:42)
at rx.f.unsafeSubscribe(Observable.java:10346)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30)
at rx.f.unsafeSubscribe(Observable.java:10346)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.f.unsafeSubscribe(Observable.java:10346)
at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.drain(OnSubscribeConcatMap.java:286)
at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.onNext(OnSubscribeConcatMap.java:144)
at rx.internal.operators.OnSubscribeFromIterable$IterableProducer.slowPath(OnSubscribeFromIterable.java:117)
at rx.internal.operators.OnSubscribeFromIterable$IterableProducer.request(OnSubscribeFromIterable.java:89)
at rx.l.setProducer(Subscriber.java:211)
at rx.internal.operators.OnSubscribeFromIterable.call(OnSubscribeFromIterable.java:63)
at rx.internal.operators.OnSubscribeFromIterable.call(OnSubscribeFromIterable.java:34)
at rx.f.unsafeSubscribe(Observable.java:10346)
at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:94)
at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:42)
at rx.f.unsafeSubscribe(Observable.java:10346)
at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.drain(OnSubscribeConcatMap.java:286)
at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.onNext(OnSubscribeConcatMap.java:144)
at rx.internal.operators.OnSubscribeFilter$FilterSubscriber.onNext(OnSubscribeFilter.java:76)
at rx.internal.operators.OnSubscribeMap$MapSubscriber.onNext(OnSubscribeMap.java:77)
at rx.internal.operators.OnSubscribeDoOnEach$DoOnEachSubscriber.onNext(OnSubscribeDoOnEach.java:101)
at rx.e.g$2.onNext(Subscribers.java:235)
at com.stanfy.enroscar.goro.a.a$1$1.a(RxGoro.java:53)
at com.stanfy.enroscar.go