In the Delphi 10.1 IDE create a VCL Application. Then insert a TToolBar on the Form. Then create a new TToolButton on the toolbar. Then COPY the button to the clipboard. Then select the toolbar. Then try to PASTE the button from the clipboard to the toolbar. An error message is displayed:
This is strange, as I assume that any control which has been copied from a container could be pasted back to the same container.
Is this a bug and can this error be avoided?