[com.amber.p33.ambermobility] Hard crash on most actions

Affected app
Name: Amber
Package id: com.amber.p33.ambermobility

Describe the bug
This app hard crashes on almost any action. This makes it pretty much impossible to use.

To Reproduce
Steps to reproduce the behavior:

1. Log in
2. Press a button (e.g. change to a different tab with the bottom toolbar)
3. Observe crash

Expected behavior
No crash

Screenshots
N.A.

System
Android Version: 10
Custom ROM: LineageOS 17.1

microG
microG Core version: 0.2.17.204714
microG Self-Check results: All ticked

Additional context
I do have a backtrace, since I know the developer of the app:

2020-12-11 13:25:18.055 12856-12856/com.amber.p33.ambermobility E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.amber.p33.ambermobility, PID: 12856
    java.lang.IllegalStateException: Calling getSourceAs when a newer style is loading/has loaded.
        at com.mapbox.mapboxsdk.maps.Style.validateState(Style.java:777)
        at com.mapbox.mapboxsdk.maps.Style.getSourceAs(Style.java:148)
        at com.mapbox.mapboxsdk.location.SymbolLocationLayerRenderer.refreshSource(SymbolLocationLayerRenderer.java:321)
        at com.mapbox.mapboxsdk.location.SymbolLocationLayerRenderer.updatePulsingUi(SymbolLocationLayerRenderer.java:289)
        at com.mapbox.mapboxsdk.location.LocationLayerController$5.onNewAnimationValue(LocationLayerController.java:299)
        at com.mapbox.mapboxsdk.location.LocationLayerController$5.onNewAnimationValue(LocationLayerController.java:292)
        at com.mapbox.mapboxsdk.location.MapboxAnimator.postUpdates(MapboxAnimator.java:104)
        at com.mapbox.mapboxsdk.location.MapboxAnimator.onAnimationUpdate(MapboxAnimator.java:91)
        at com.mapbox.mapboxsdk.location.PulsingLocationCircleAnimator.onAnimationUpdate(PulsingLocationCircleAnimator.java:6)
        at android.animation.ValueAnimator.animateValue(ValueAnimator.java:1558)
        at android.animation.ValueAnimator.animateBasedOnTime(ValueAnimator.java:1349)
        at android.animation.ValueAnimator.doAnimationFrame(ValueAnimator.java:1481)
        at android.animation.AnimationHandler.doAnimationFrame(AnimationHandler.java:146)
        at android.animation.AnimationHandler.access$100(AnimationHandler.java:37)
        at android.animation.AnimationHandler$1.doFrame(AnimationHandler.java:54)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:965)
        at android.view.Choreographer.doCallbacks(Choreographer.java:791)
        at android.view.Choreographer.doFrame(Choreographer.java:722)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:952)
        at android.os.Handler.handleCallback(Handler.java:883)
        at android.os.Handler.dispatchMessage(Handler.java:100)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7356)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:491)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:940)

My guess is that there is an issue with how mapbox is used by microg. However I am not sure, so if this is a mapbox bug I will report it there. The app works fine on Android phones without an alternative Play Services implementation

Start by reproducing the crash on Android 10 with microG 0.2.17.204714 and the Amber app, then trace the reported Mapbox calls from Style.validateState through SymbolLocationLayerRenderer.refreshSource. Compare behavior with standard Play Services and determine whether the fix belongs in GmsCore or Mapbox integration; done means tab changes and other actions no longer crash.