How can I find the corresponding diagram in the Collaboration Hub/Explorer? Search Result shows "No elements".
You can search for the IDs in advanced search in Editor. You have to select for it 'Signavio ID' from the drop-down menu. In Collaboration Hub you can find also the advanced search, but you can't search for diagram IDs.
If you already have an ID you can also paste it directly in the link.
The id in URL after the 'model/' is exactly the id you are looking for.
KBA , BPI-SIG-HUB , SAP Signavio Process Collaboration Hub , How To