TWPPreviewDlg - Executing twice on form causes access violat

Using Delphi 2007 WPTools V5.0 Release 30.2

I place a TWPPreviewDlg on a form, execute the component, so far no problem. If I execute the TWPPreviewDlg a second time, I get an access violation.
In unit WPPrvFrm it hangs at line 375.
if FModal then
begin
dia.ShowModal;
dia := nil;
end
else
dia.Show;
Result := TRUE;