Hi. I am having a complete misunderstanding and was pointed to here as a possible help. I am trying to draw a Polygon ("CityWall") in response to clicks. Clicks are passed to ViewModel, which adds them to an "in Progress" variable, and when the last click is done (click on 1st point), it creates a CityWall object, that is passed to Composable to draw. BUT: in the process of debugging, I have stopped the code referring to a particular variable (in the ViewModel), but it keeps changing! I can supply code