java.lang.NullPointerException: at org.nativescript.widgets.TabsBar.updateItemAt (TabsBar.java:195)

Comienza en org.nativescript.widgets.TabsBar.updateItemAt en TabsBar.java, línea 195, y sigue la ruta del ciclo de vida de Android mostrada en el stack trace. Intenta reproducir el fallo con las versiones indicadas de NativeScript, tns-android, SDK y Android 9/10. Se considera terminado cuando TabsBar deja de producir esta NullPointerException durante la ruta del ciclo de vida afectada.

Environment

AndroidSdk = '29';
AndroidSdkBuildTools = '29.0.3';
NodeJs = '10.21.0';
NativeScriptCLI = '6.7.4';

  "nativescript": {
    "tns-android": {
      "version": "6.5.3"
    },
    "tns-ios": {
      "version": "6.5.1"
    }
  },

Describe the bug
Having a couple of hard crashes in "TabsBar" widget.

Error: 
   at com.tns.Runtime.callJSMethodNative (Native Method)
   at com.tns.Runtime.dispatchCallJSMethodNative (Runtime.java:1286)
   at com.tns.Runtime.callJSMethodImpl (Runtime.java:1173)
   at com.tns.Runtime.callJSMethod (Runtime.java:1160)
   at com.tns.Runtime.callJSMethod (Runtime.java:1138)
   at com.tns.Runtime.callJSMethod (Runtime.java:1134)
   at com.tns.NativeScriptActivity.onStart (NativeScriptActivity.java:29)
   at android.app.Instrumentation.callActivityOnStart (Instrumentation.java:1433)
   at android.app.Activity.performStart (Activity.java:7980)
   at android.app.ActivityThread.handleStartActivity (ActivityThread.java:3578)
   at android.app.servertransaction.TransactionExecutor.performLifecycleSequence (TransactionExecutor.java:221)
   at android.app.servertransaction.TransactionExecutor.cycleToPath (TransactionExecutor.java:201)
   at android.app.servertransaction.TransactionExecutor.cycleToPath (TransactionExecutor.java:183)
   at android.app.servertransaction.TransactionExecutor.executeCallbacks (TransactionExecutor.java:132)
   at android.app.servertransaction.TransactionExecutor.execute (TransactionExecutor.java:95)
   at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2220)
   at android.os.Handler.dispatchMessage (Handler.java:107)
   at android.os.Looper.loop (Looper.java:237)
   at android.app.ActivityThread.main (ActivityThread.java:8016)
   at java.lang.reflect.Method.invoke (Native Method)
   at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:493)
   at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1076)
Caused by: java.lang.NullPointerException: 
   at org.nativescript.widgets.TabsBar.updateItemAt (TabsBar.java:195)

To Reproduce
not able yet

Expected behavior
dont crash

Sample project
not possible yet

Additional context
Android 9/10 until now