[WD21] Clone Shape (Arrow) Control

Hi
I am trying to clone a horizontal Arrow control but it won't show the Arrowhead at the end, unless I take the line off the horizontal. It will however show the Arrowhead at the start without a problem. The control shows perfectly in the IDE so I'm guessing it's a bug.

I can't use a wire control (already tried that but too many extraneous things happening for my purposes) & whilst an image control does work it looks very ordinary when the window is stretched.

Any ideas?

Thanks

David