Bug [Android] JNI ERROR (app bug): global reference table overflow (max=51200)

I have a crash on Android.

Environment :
Unity : 2021.3.6f1
Device : Pixel 3a Android 11
Unity Ads : com.unity3d.ads:unity-ads:4.2.1 (Admob mediation)
Admob : com.google.android.gmslay-services-ads:21.0.0
Adapter : com.google.ads.mediation:unity:4.2.1.1

Stack Trace :
JNI ERROR (app bug): global reference table overflow (max=51200)global reference table dump:
Last 10 entries (of 51199):
51198: 0x15c17228 android.view.MotionEvent
51197: 0x15c11cc8 android.view.MotionEvent
51196: 0x12f34b60 java.lang.Long
51195: 0x15c11cc8 android.view.MotionEvent
51194: 0x15c16620 android.view.MotionEvent
51193: 0x15c11cc8 android.view.MotionEvent
51192: 0x15c16620 android.view.MotionEvent
51191: 0x15c11cc8 android.view.MotionEvent
51190: 0x15c17248 android.view.MotionEvent
51189: 0x15c11cc8 android.view.MotionEvent
Summary:
49811 of android.view.MotionEvent (52 unique instances)
664 of java.lang.Class (445 unique instances)
317 of java.nio.DirectByteBuffer (317 unique instances)
32 of com.google.unity.ads.UnityRewardedAd (32 unique instances)
32 of android.os.VibrationEffect$OneShot (32 unique instances)
29 of android.database.ContentObserver$Transport (29 unique instances)
26 of Si0 (26 unique instances)
20 of java.lang.String (19 unique instances)
20 of android.view.KeyEvent (20 unique instances)
18 of android.app.LoadedApk$ReceiverDispatcher$InnerReceiver (18 unique instances)
17 of android.app.LoadedApk$ServiceDispatcher$InnerConnection (17 unique instances)
13 of android.view.ViewRootImpl$W (13 unique instances)
11 of android.os.Binder (11 unique instances)
7 of android.os.Handler$MessengerImpl (7 unique instances)
6 of com.unity3d.player.UnityPlayerActivity (1 unique instances)
6 of android.os.Handler (6 unique instances)
6 of android.content.ContentProvider$Transport (6 unique instances)
5 of dalvik.system.PathClassLoader (3 unique instances)
5 of org.chromium.content.browser.framehost.NavigationControllerImpl (5 unique instances)
5 of org.chromium.content.browser.webcontents.WebContentsImpl (5 unique instances)
5 of org.chromium.content.browser.webcontents.WebContentsObserverProxy (5 unique instances)
5 of java.lang.ref.WeakReference (5 unique instances)
5 of android.app.LoadedApk$ServiceDispatcher$DeathMonitor (5 unique instances)
5 of android.media.PlayerBase$IPlayerWrapper (5 unique instances)
4 of java.lang.reflect.Method (4 unique instances)
3 of android.opengl.EGLContext (2 unique instances)
3 of android.opengl.EGLDisplay (2 unique instances)
3 of android.opengl.EGLSurface (2 unique instances)
3 of org.chromium.ui.base.WindowAndroid (3 unique instances)
3 of org.chromium.mojo.system.impl.WatcherImpl (3 unique instances)
3 of com.google.android.gms.ads.internal.request.k (3 unique instances)
3 of $Proxy3 (3 unique instances)
3 of android.view.Surface (3 unique instances)
2 of com.google.ccc.abuse.droidguard.DroidGuard (1 unique instances)
2 of $Proxy9 (1 unique instances)
2 of android.app.Application (1 unique instances)
2 of android.media.AudioManager (1 unique instances)
2 of android.os.Bundle (1 unique instances)
2 of android.hardware.display.DisplayManager (1 unique instances)
2 of android.view.Display (1 unique instances)
2 of org.chromium.base.JavaHandlerThread (2 unique instances)
2 of com.android.billingclient.api.SkuDetails (2 unique instances)
2 of org.chromium.content.browser.AudioFocusDelegate (2 unique instances)
2 of org.chromium.ui.base.EventForwarder (2 unique instances)
2 of org.chromium.content.browser.RenderWidgetHostViewImpl (2 unique instances)
2 of com.google.android.gms.internal.appset.zzo (2 unique instances)
2 of java.lang.ThreadGroup (2 unique instances)
2 of dalvik.system.DexClassLoader (2 unique instances)
2 of android.media.AudioManager$1 (2 unique instances)
2 of android.view.autofill.AutofillManager$AutofillManagerClient (2 unique instances)
1 of org.chromium.ui.gfx.ViewConfigurationHelper
1 of org.chromium.components.policy.PolicyConverter
1 of org.chromium.components.policy.CombinedPolicyProvider
1 of org.chromium.net.NetworkChangeNotifier
1 of org.chromium.net.NetworkActiveNotifier
1 of org.chromium.net.ProxyChangeListener
1 of org.chromium.android_webview.AwBrowserContext
1 of org.chromium.components.viz.service.frame_sinks.ExternalBeginFrameSourceAndroid
1 of org.chromium.android_webview.gfx.RootBeginFrameSourceWebView
1 of org.chromium.media.AudioManagerAndroid
1 of org.chromium.content.browser.ChildProcessLauncherHelperImpl
1 of com.google.firebase.FirebaseApp
1 of com.google.firebase.analytics.FirebaseAnalytics
1 of org.chromium.content.browser.ContentNfcDelegate
1 of org.chromium.device.time_zone_monitor.TimeZoneMonitor
1 of com.android.billingclient.api.BillingClientImpl
1 of com.unity3d.player.UnityPlayer
1 of org.chromium.device.sensors.PlatformSensor
1 of com.google.unity.ads.Interstitial
1 of org.chromium.device.sensors.PlatformSensorProvider
1 of com.google.android.gms.common.internal.zzd
1 of alx
1 of com.unity3d.player.HFPStatus
1 of O1
1 of com.android.webview.chromium.AwSafeBrowsingApiHandler
1 of Sj
1 of $Proxy8
1 of $Proxy7
1 of $Proxy6
1 of $Proxy5
1 of $Proxy4
1 of com.unity3d.player.PlayAssetDeliveryUnityWrapper
1 of $Proxy2
1 of $Proxy1
1 of com.unity3d.player.Camera2Wrapper
1 of java.lang.Object[] (6 elements)
1 of java.lang.String[]
1 of java.nio.ByteOrder
1 of java.lang.Long
1 of java.util.HashMap
1 of dalvik.system.VMRuntime
1 of android.hardware.input.InputManager
1 of android.media.MediaRouter
1 of android.util.DisplayMetrics
1 of android.view.Choreographer
1 of android.app.ActivityThread$ApplicationThread
1 of android.app.SharedPreferencesImpl$EditorImpl
1 of android.app.SharedPreferencesImpl
1 of android.content.ClipboardManager$1
1 of android.graphics.HardwareRenderer$ProcessInitializer$1
1 of android.hardware.display.DisplayManagerGlobal$DisplayManagerCallback
1 of android.hardware.input.InputManager$InputDevicesChangedListener
1 of android.location.LocationManager
1 of android.os.HandlerThread
1 of android.os.PersistableBundle$1
1 of android.os.SystemVibrator
1 of android.telephony.TelephonyManager$DeathRecipient
1 of android.media.MediaRouter$Static$1
1 of android.media.MediaRouter$Static$Client
1 of android.os.PowerManager$3
1 of android.telephony.PhoneStateListener$IPhoneStateListenerStub
1 of android.view.SurfaceView
1 of android.view.WindowManagerGlobal$1
1 of android.view.accessibility.AccessibilityManager$1
1 of android.view.inputmethod.InputMethodManager$1
1 of android.view.inputmethod.InputMethodManager$ControlledInputConnectionWrapper
1 of android.net.TetheringManager$TetheringCallbackInternal
:
#00 pc 0x000000000004e2cc /apex/com.android.runtime/lib64/bionic/libc.so (abort)
#00 pc 0x000000000055bc54 /apex/com.android.art/lib64/libart.so (art::Runtime::Abort(char const*))
#00 pc 0x0000000000013978 /system/lib64/libbase.so (android::base::SetAborter(std::__1::function<void (char const*)>&&)::$_3::__invoke(char const*))
#00 pc 0x0000000000012fa4 /system/lib64/libbase.so (android::base::LogMessage::~LogMessage())
#00 pc 0x0000000000386b8c /apex/com.android.art/lib64/libart.so (art::JavaVMExt::AddGlobalRef(art::Thread*, art::ObjPtr<art::mirror::Object>))
#00 pc 0x00000000003994d4 /apex/com.android.art/lib64/libart.so (art::JNI<false>::NewGlobalRef(_JNIEnv*, _jobject*))
#00 pc 0x000000000386f424 /data/app/~~f3TTNqbyjFFEzJ1YN9ls7Q==/com.google.android.webview-kbWaw7DihuQ9Mv9hFPS8lw==/base.apk!libmonochrome.so

 

I am not sure if it's really the same but this looks very much like this insidious problem here https://forum.unity.com/threads/and...ibunity-so-jni-newglobalref-_jobject.1304658/

 

Thanks for the info.