In a Visio file, I get a loading indicator for some shapes that can not be loaded. I would like to know which shapes these are.

When I close the loading indicator, I get a debug log in the cube logging indicating shape IDs like this:

Message : Visual Overview Page Loading - . Page name: IRD 141-152. Page has pending placeholders = False.
Shapes with pending placeholders: .
Loading Shapes: Duplicated shape with id: 1222;Duplicated shape with id: 931;Duplicated shape with id: 1643;Duplicated shape with id: 1654;Duplicated shape with id: 934;Duplicated shape with id: 1655;Duplicated shape with id: 1006;Duplicated shape with id: 1219;Duplicated shape with id: 935;Duplicated shape with id: 1220;Duplicated shape with id: 932;Duplicated shape with id: 1223;Duplicated shape with id: 1004;Duplicated shape with id: 1211;Duplicated shape with id: 923;Duplicated shape with id: 1651;Duplicated shape with id: 1212;Duplicated shape with id: 996;Duplicated shape with id: 1644;Duplicated shape with id: 1652;Duplicated shape with id: 1007;Duplicated shape with id: 924;Duplicated shape with id: 1003;Duplicated shape with id: 995.

But when I look in the Drawing Explorer or search in the Visio for shape IDs mentioned here, there are no results.

I suspect this to be caused by dynamically generated shapes, is this correct and is there any way to find the original shape that is causing these loading issues?