Which you did. Thanks for that.
BTW, after making the 'phantom' selection with the Flood Fill Tool, switching to the Move Tool & dragging the pixel layer I get this strange & kind of confusing result:
The solid bounding box around the original phantom selection does funny things when I deselect & reselect the layer, move the marching ants selection, & so on, as if the app does not know what is selected or its 'parent.'
Definitely a bug.