Repro steps:

1) Open "XAMLUnityConnection.zip (2 MB)" project sent by user in email attachements.

2) Run this project in Unity.

3) Click the "Broadcastmessage string" and "Broadcastmessage Dictionay"
buttons.

4) Note that the message is retrieved for both types.

5) Build a Windows Store app 8.1 C# XAML solution and export this into the Export folder.

6) Open the exported project in Visual Studio Export\XAMLUnityConnection.sln

7) Build and run this exported project in Visual Studio

8) Click the "Broadcastmessage string" and "Broadcastmessage Dictionay"
buttons

9) Note that ONLY the Broadcastmessage string button is being retrieved.