I opened the panels demo project and wihtout doing anything tried to
close it. IDE throws an exception:
[Interface Manager Debug] Unexpected error calling Destroy method
(Unhandled exception: Invalid instance reference Trace: Exception
instance raised in unit WebCore at 3217,13 TComponent.Notification in
unit WebCore at 3217,46 TComponent.Notify in unit WebCore at 3138,7
TComponent.Destr....