Dear Xara...

At 100% and an XGA Web Page in single page view with the bottom of the page not in view, I right-click a shape and drag to release a clone of the shape at the page bottom.

Before I get to the release the dragged item vanishes.
If I pussyfoot around and drag gently and pretend I am not doing anything special ("Nothing to see here!"), I can use the drag to move the view of the page up and safely release my copy.

There is clearly a code conflict with the drag and the page move.
It appears in v15.1 so I assume it has always been faulty.

Acorn