App Crashes When Canceling SMB Connection After Delay

[ScenarioKG]

Describe the Bug
The app crashes when canceling an SMB connection after a prolonged wait time.

Steps to Reproduce

1. Click on ‘+’.
2. Click on ‘Cloud Connection’.
3. Select ‘SMB Connection’.
4. Wait for an extended period.
5. Click on the ‘Cancel’ button.
6. Click on ‘+’ again.
7. Click on ‘Cloud Connection’.
8. Select ‘SMB Connection’.
9. Click on the ‘Cancel’ button.

Expected Behavior
The “Searching for devices” dialog should disappear without causing a crash.

Video

video.mov

Smartphone (please complete the following information):

• Device: [Google Pixel 5]
• OS: [Android 14]
• Rooted: [No]
• Version: [v3.10]

Exception

• App Name: Amaze File Manager
• Package: com.amaze.filemanager
• Version: 3.10
• User Action: UI Error
• Request: Application crash
• OS: Linux Android 14 - 34
• Device: redfin
• Model: Pixel 5
• Product: redfin

Crash log

io.reactivex.exceptions.UndeliverableException: The exception could not be delivered to the consumer because it has already canceled/disposed the flow or the exception has nowhere to go to begin with. Further reading: https://github.com/ReactiveX/RxJava/wiki/What's-different-in-2.0#error-handling | kotlin.UninitializedPropertyAccessException: lateinit property disposable has not been initialized
	at io.reactivex.plugins.RxJavaPlugins.onError(RxJavaPlugins.java:367)
	at io.reactivex.internal.observers.DisposableLambdaObserver.dispose(DisposableLambdaObserver.java:88)
	at io.reactivex.internal.disposables.DisposableHelper.dispose(DisposableHelper.java:124)
	at io.reactivex.internal.observers.LambdaObserver.dispose(LambdaObserver.java:102)
	at com.amaze.filemanager.ui.dialogs.SmbSearchDialog.onCreateDialog$lambda$0(SmbSearchDialog.kt:83)
	at com.amaze.filemanager.ui.dialogs.SmbSearchDialog.$r8$lambda$g1A-0ZtDliiR6TAsZVli3dLgYMU(Unknown Source:0)
	at com.amaze.filemanager.ui.dialogs.SmbSearchDialog$$ExternalSyntheticLambda0.onClick(Unknown Source:2)
	at com.afollestad.materialdialogs.MaterialDialog.onClick(MaterialDialog.java:433)
	at android.view.View.performClick(View.java:7659)
	at android.view.View.performClickInternal(View.java:7636)
	at android.view.View.-$$Nest$mperformClickInternal(Unknown Source:0)
	at android.view.View$PerformClick.run(View.java:30156)
	at android.os.Handler.handleCallback(Handler.java:958)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loopOnce(Looper.java:205)
	at android.os.Looper.loop(Looper.java:294)
	at android.app.ActivityThread.main(ActivityThread.java:8177)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:552)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:971)
Caused by: kotlin.UninitializedPropertyAccessException: lateinit property disposable has not been initialized
	at com.amaze.filemanager.utils.smb.SmbDeviceScannerObservable.stop(SmbDeviceScannerObservable.kt:72)
	at com.amaze.filemanager.ui.dialogs.SmbSearchDialog.onCreateDialog$lambda$2(SmbSearchDialog.kt:106)
	at com.amaze.filemanager.ui.dialogs.SmbSearchDialog.$r8$lambda$e-jPftKWNVfVAKamaTIyu395MpA(Unknown Source:0)
	at com.amaze.filemanager.ui.dialogs.SmbSearchDialog$$ExternalSyntheticLambda2.run(Unknown Source:2)
	at io.reactivex.internal.observers.DisposableLambdaObserver.dispose(DisposableLambdaObserver.java:85)
	... 18 more

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