I have a non-modal Window, if I resize the widow by shrinking it disappears.
This only occurs if shrink in both axes or shrink in one axis and the other is the same size.
So if I shrink vertically but grow horizontal and vice-versa, no issues.
<Window OnClose=@OnOneBiggyCanvasClicked Label=”Single Sample” HeaderButtons=@HeaderButtonsOneBiggy ResizeMode=”WindowResizeMode.Both” IsOpened=@OneBiggyOpen Style=”position:center; width:400px; height:400px;” Modal=”false”>