ConversationTranslator.SessionStarted assignment failed with AoT related issues in C# MAUI iOS (debug mode is ok, release mode failed)

[billylo1]

Speech SDK 1.42, C#, MAUI, iOS

Joining a conversation works in debug mode only. In release mode, a AoT related error occurred and the conversationTranslator.SessionStarted assignment failed. I tried disabling AoT but the whole app crashed on launch in release mode (so, it's not a valid workaround yet)

Android release mode works fine.

conversationTranslator = new ConversationTranslator();
conversationTranslator.SessionStarted += (s, e) =>
      {
          Debug.WriteLine($"SESSION STARTED: {e.SessionId}");
       };
Attempting to JIT compile method '(wrapper native-to-managed) void Microsoft.CognitiveServices.Speech.Internal.InteropEvent`1<Microsoft.CognitiveServices.Speech.SessionEventArgs>:FromNativeCallback (intptr,intptr,intptr)' while running in aot-only mode. See https://docs.microsoft.com/xamarin/ios/internals/limitations for more information.
   at Microsoft.CognitiveServices.Speech.Internal.InteropEvent`1[[Microsoft.CognitiveServices.Speech.SessionEventArgs, Microsoft.CognitiveServices.Speech.csharp, Version=1.42.0.28, Culture=neutral, PublicKeyToken=d2e6dcccb609e663]].Add(EventHandler`1 handler)
   at Microsoft.CognitiveServices.Speech.Transcription.ConversationTranslator.add_SessionStarted(EventHandler`1 value)
   at speech_to_text.MainPage.CreateJoinConversationAsyncAndUpdateUI(String conversationId, Boolean brandNewMeeting)

To Reproduce

Steps to reproduce the behavior:

1. Create a simple MAUI app that assigns a callback for conversationTranslator. e.g. SessionStarted
2. Publish app to TestFlight
3. Run app.

Expected behavior

Successfully assign the callback and continue to join the conversation.

Version of the Cognitive Services Speech SDK

1.42

Platform, Operating System, and Programming Language

iOS 18.2.1, C#

Additional context

Debug build works fine.
Disabling AoT causing other issues.

After removing that callback (for start/stop sessions), the rest of the logic works. So, I have a workaround now.