Possible bug:  item dragged between grids remains behind in original grid.

1) Grid-1 open in left pane; Grid-2 open in View Pane on the right

2) Drag item from Grid-2 to Grid-1.  Item has no parent at start, but ends up under parent in Grid-1

3) Problem: after drag, Item remains in view in Grid-2 even though Properties pane shows it no longer assigned to this grid.

4) Refresh Grid-2.  Item remains in Grid-2 and now Properties Pane shows it IS assigned to the grid.  In addition, it now shows context parents from Grid-1.

Doesn't happen every time but has occurred a half dozen times in the past few minutes.

Wayne