[Bug]: After GetInstance, calling All<T>().FirstOrDefault(); throws System.ArgumentOutOfRangeException

[winnicki]

What happened?

After I use GetInstance, I try to get All<Folder>().FirstOrDefault(f => f.Name == "Root Folder"); and it throws a System.ArgumentOutOfRangeException. If I re-run the app it works, so I know it's because the data isn't synced, but if it's not synced yet then it should just return nothing, not throw an exception?

This and 2 other issues I logged tonight can all be easily reproduced in my Xamarin app once I give you access to the GH repo.

Repro steps

1. Run the app for the first time
2. Quit the app and run again (LoginAsync hangs first time because of [Bug]: await LogInAsync(Credentials.Anonymous) always hangs the first time app runs #3090)
3. Put a breakpoint on line 78 in FolderClientService.GetRootFolder

Result: exception is thrown

Version

10.18.0

What SDK flavour are you using?

MongoDB Atlas (i.e. Sync, auth, functions)

What type of application is this?

Xamarin

Client OS and version

Xamarin.iOS running iOS 16

Code snippets

Search GetRootFolder in the solution.

Stacktrace of the exception/crash you're getting

System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: Get from RealmResults index:0 beyond range of:0
  at Realms.NativeException.ThrowIfNecessary (System.Func`2[T,TResult] overrider) [0x0000a] in D:\a\realm-dotnet\realm-dotnet\Realm\Realm\Native\NativeException.cs:88 
  at Realms.ResultsHandle.GetValueAtIndex (System.Int32 index, Realms.Realm realm) [0x00016] in D:\a\realm-dotnet\realm-dotnet\Realm\Realm\Handles\ResultsHandle.cs:121 
  at Realms.RealmResultsVisitor.GetObjectAtIndex (System.Int32 index, Realms.ResultsHandle rh, System.String methodName) [0x00000] in D:\a\realm-dotnet\realm-dotnet\Realm\Realm\Linq\RealmResultsVisitor.cs:631

Relevant log output

No response

[nirinchev]

I can't reproduce this - I'm getting null for this. I'm running it on the iOS simulator on my mac - LMK if this only reproduces on a particular platform.

[winnicki]

Closing this as it's not a Realm bug.