googleads-mobile-android-mediation: AdColony error on google automated tests

Its happen only on automated tests when i upload app to Play Store. No errors from real devices.

Stack trace:

java.lang.ClassCastException: android.webkit.WebMessagePortWrapper cannot be cast to qz0
        at qz0.b(chromium-SystemWebViewGoogle.aab-stable-460608501:3)
        at com.android.webview.chromium.WebViewChromium.postMessageToMainFrame(chromium-SystemWebViewGoogle.aab-stable-460608501:3)
        at android.webkit.WebView.postWebMessage(WebView.java:1880)
        at com.adcolony.sdk.w0.e(w0:18)
        at com.adcolony.sdk.w0.d(w0:3)
        at com.adcolony.sdk.w0$b.onPageFinished(w0:2)
        at nC0.b(chromium-SystemWebViewGoogle.aab-stable-460608501:2)
        at ka.handleMessage(chromium-SystemWebViewGoogle.aab-stable-460608501:62)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:148)
        at android.app.ActivityThread.main(ActivityThread.java:5421)
        at java.lang.reflect.Method.invoke(Method.java:-2)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

Device:

brand: google
manufacturer: LGE
model: Nexus 5X
osVersion: 6.0.1
osBuild: MTC20F

Firebase-Ads: com.google.firebase:firebase-ads:20.4.0 AdColony mediation adapter: com.google.ads.mediation:adcolony:4.6.3.0