Is Shape.StaticID property unique within a CorelDraw file?

Hello,

I have a small VBA application that is dependent on the uniqueness of Shape.StaticID property (according to CorelDraw documentation this property is unique for each shape in a drawing). The application worked perfectly until I encountered a number of files where several different shapes have the same StaticID value. How is this possible? Has anyone else encountered the same?

Thanks a lot for your help!

Best regards,

Stanislav