NullPointerException in gms when running "Cabify"

Hello,

I have microG 0.2.4-111 installed via NanoDroid (flashed as a Magisk module, version 16.5.20180402), which works fine for most things I need.

Now, when I use Cabify (com.cabify.rider, a Spanish transportation network company), the app starts but crashes after I pick the destination address. Below is the crash log -- it seems related to microG GmsCore (perhaps Cabify would be a candidate for inclusion as one of the problematic apps?)

I am using OmniDroid 8.1.0-20180408 on a Xiaomi Redmi Note 4 (mido).
However, the same issue happened when I used a Nougat-based crDroid.
The version of Cabify I am using is 7.1.9, installed via Yalpstore (I have no Gapps).

Update: flashed OmniDroid 8.1.0-20180415, and the problem persists

(Actually, the same crash happens with another cab app, Brazilian "99 Taxis", except that instead of com.cabify.driver it's "com.taxis99" in the logs)

-- j

04-09 10:05:42.352 23461 23461 D SafeParcel: Unknown field num 15 in com.google.android.gms.maps.model.MarkerOptions, skipping.
04-09 10:05:42.352 23461 23461 D GmsMapMarkerImpl: New marker m29 with title null @ lat/lng: (-23.561714,-46.656041)
04-09 10:05:42.355 23461 23461 D SafeParcel: Unknown field num 15 in com.google.android.gms.maps.model.MarkerOptions, skipping.
04-09 10:05:42.355 23461 23461 D GmsMapMarkerImpl: New marker m30 with title null @ lat/lng: (-23.561714,-46.656041)
04-09 10:05:42.359 23461 23461 D SafeParcel: Unknown field num 15 in com.google.android.gms.maps.model.MarkerOptions, skipping.
04-09 10:05:42.359 23461 23461 D GmsMapMarkerImpl: New marker m31 with title null @ lat/lng: (-23.5410497,-46.6736297)
04-09 10:05:42.362 23461 23461 D SafeParcel: Unknown field num 15 in com.google.android.gms.maps.model.MarkerOptions, skipping.
04-09 10:05:42.362 23461 23461 D GmsMapMarkerImpl: New marker m32 with title null @ lat/lng: (-23.5410497,-46.6736297)
04-09 10:05:42.363 23461 23461 D AndroidRuntime: Shutting down VM
04-09 10:05:42.363 23461 23461 E AndroidRuntime: FATAL EXCEPTION: main
04-09 10:05:42.363 23461 23461 E AndroidRuntime: Process: com.cabify.rider, PID: 23461
04-09 10:05:42.363 23461 23461 E AndroidRuntime: java.lang.NullPointerException: Attempt to invoke interface method 'android.os.IBinder com.google.android.gms.dynamic.IObjectWrapper.asBinder()' on a null object reference
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.google.android.gms.dynamic.zzn.zzx(Unknown Source:11)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.google.android.gms.maps.model.Marker.getTag(Un known Source:6)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.cabify.rider.presentation.customviews.map.Cabi fyGoogleMapView.a(Unknown Source:67)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.cabify.rider.presentation.base.p.Jj(Unknown Source:12)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.cabify.rider.presentation.base.r.Jp(Unknown Source:8)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.cabify.rider.presentation.states.vehicle_selec tion.VehicleSelectorBaseFragment$addRouteMarkers$1 .sB(Unknown Source:6)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.cabify.rider.presentation.states.vehicle_selec tion.VehicleSelectorBaseFragment$addRouteMarkers$1 .invoke(Unknown Source:0)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.cabify.rider.presentation.customviews.map.Cabi fyGoogleMapView$drawMarkers$1.sB(Unknown Source:18)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.cabify.rider.presentation.customviews.map.Cabi fyGoogleMapView$drawMarkers$$inlined$forEach$lambd a$1.sB(Unknown Source:2)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.cabify.rider.presentation.customviews.map.Cabi fyGoogleMapView$drawMarkers$$inlined$forEach$lambd a$1.invoke(Unknown Source:0)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.cabify.rider.presentation.customviews.map.Cabi fyGoogleMapView$drawMarker$3.a(Unknown Source:75)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.cabify.rider.presentation.customviews.map.Cabi fyGoogleMapView$drawMarker$3.f(Unknown Source:4)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.cabify.rider.presentation.customviews.map.Mark erFactory$Companion$createMarkerFromView$1.sB(Unkn own Source:130)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.cabify.rider.presentation.customviews.map.Mark erFactory$Companion$createMarkerFromView$1.invoke( Unknown Source:0)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.cabify.rider.extension.q$a.onGlobalLayout(Unkn own Source:20)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at android.view.ViewTreeObserver.dispatchOnGlobalLayo ut(ViewTreeObserver.java:945)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at android.view.ViewRootImpl.performTraversals(ViewRo otImpl.java:2250)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at android.view.ViewRootImpl.doTraversal(ViewRootImpl .java:1392)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at android.view.ViewRootImpl$TraversalRunnable.run(Vi ewRootImpl.java:6752)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at android.view.Choreographer$CallbackRecord.run(Chor eographer.java:911)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at android.view.Choreographer.doCallbacks(Choreograph er.java:723)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at android.view.Choreographer.doFrame(Choreographer.j ava:658)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at android.view.Choreographer$FrameDisplayEventReceiv er.run(Choreographer.java:897)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:790 )
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:99 )
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at android.os.Looper.loop(Looper.java:164)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.jav a:6494)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsC aller.run(RuntimeInit.java:438)
04-09 10:05:42.363 23461 23461 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit .java:807)
04-09 10:05:42.516 2233 3126 W ActivityManager: Force finishing activity com.cabify.rider/.presentation.states.journeybase.JourneyBaseActivi ty
04-09 10:05:42.521 2233 2260 I ActivityManager: Showing crash dialog for package com.cabify.rider u0

Start with the reported stack trace around GmsMapMarkerImpl, Marker.getTag, and com.google.android.gms.dynamic.zzn.zzx, then inspect the corresponding GmsCore Maps implementation. Reproduce the crash with Cabify 7.1.9 or 99 Taxis if those apps remain available. Done would require identifying the null wrapper path, adding a regression test if the project supports one, and preventing the application crash.