[com.soundcloud.android] Recaptcha at Email Sign-in is not showing

Affected app
Name: Soundcloud
Package id: com.soundcloud.android
Version: 2021.12.15-release

Describe the bug

Cannot use the Email login. The App responds with an error

Something doesn't sound right. Try signing up at Soundcloud.com

Logcats message is refering to a not found Intent

W ActivityManager: Unable to start service Intent { act=com.google.android.gms.recaptcha.service.START pkg=com.google.android.gms } U=0: not found

That having a swift look at the code, com.google.android.gms.recaptcha.service.START is filtered by org.microg.gms.DummyService.

To Reproduce
Steps to reproduce the behavior:

1. install Soundcloud
2. choose "I already have an account"
3. Sign-in with Email authentification (no SSO)
4. get Error

Expected behavior
Sign-in succeeds

System
Android Version: Android 10
Custom ROM: /e/ 0.21-Q

microG
microG Core version: 0.2.22.212658-158
microG Self-Check results: All ticked

full logcat

D SafeParcel: Unknown field id 14 in com.google.android.gms.common.internal.GetServiceRequest, skipping.
D GmsMeasureBrokerSvc: bound by: GetServiceRequest{serviceId=MEASUREMENT, gmsVersion=12451000, packageName='com.soundcloud.android', extras=Bundle[{}]}
W ActivityManager: Unable to start service Intent { act=com.google.android.gms.recaptcha.service.START pkg=com.google.android.gms } U=0: not found
D SafeParcel: Unknown field id 2 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 3 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 4 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 5 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D GmsMeasureSvcImpl: f1: com.soundcloud.android
W ActivityManager: Unbind failed: could not find connection for android.os.BinderProxy@d550f20
D SafeParcel: Unknown field id 2 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 3 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 4 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 5 in com.google.android.gms.measurement.internal.EventParcel, skipping.
E InputDispatcher: Window handle Window{e06a4ab u0 com.soundcloud.android/com.soundcloud.android.onboarding.auth.AuthenticationActivity} has no registered input channel
D GmsMeasureSvcImpl: f1: com.soundcloud.android
D SafeParcel: Unknown field id 2 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 3 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 4 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 5 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D GmsMeasureSvcImpl: f1: com.soundcloud.android
E WindowManager: App trying to use insecure INPUT_FEATURE_NO_INPUT_CHANNEL flag. Ignoring
D SafeParcel: Unknown field id 2 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 3 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 4 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 5 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D GmsMeasureSvcImpl: f1: com.soundcloud.android
W FA      : Value is too long; discarded. Value kind, name, value length: param, error_message, 155
D SafeParcel: Unknown field id 2 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 3 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 4 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D SafeParcel: Unknown field id 5 in com.google.android.gms.measurement.internal.EventParcel, skipping.
D GmsMeasureSvcImpl: f1: com.soundcloud.android

Start with play-services-core/src/main/AndroidManifest.xml, especially the org.microg.gms.DummyService entry linked in the report, and trace the com.google.android.gms.recaptcha.service.START intent during email sign-in. Reproduce the flow from AuthenticationActivity while collecting logcat; done means the Recaptcha step appears and SoundCloud email sign-in succeeds.