Bug? [4.2 Beta] ChoiceBox & ListView bug

I have a ChoiceBox and ListView. I'm using the SelectedIndexChanged method and my "If" statement causes my app to crash upon selecting a value in the ListView.

This is a very weird bug. The project is attached. (Have to upload to OneDrive. There isn't any error messages in the file uploader if it's too big.)

OneDrive Link: https://onedrive.live.com/redir?res...7152&authkey=!AFdiokdFEG_4Z98&ithint=file,zip

Please post the SelectedIndexChanged code and the error message.

If you check if index < 0 if true then return. I had this in a program too.
It appears to detect the initial change of items(adding etc) and triggers the event.
As the user can only select what is in the list, index of -1 is not so important as for other controls.

B4X:

Sub ProjectOptionsBox_SelectedIndexChanged(Index As Int, Value As Object)
    If Index < 0 Then Return
.....

Just noticed you set the selectedindex to 0 when initializing the data for the control (I did the same) , change it to -1 and the problem goes away.
That explains why it fired the event, it went from -1 (no item selected) when the data was loaded into it, to 0 when (we) set the selectedIndex = 0.