When you add a Document Set to your SharePoint Document Library that has a very similar name to an existing Document Set, executing the “getDocumentSets” method results in an error.
The following error occurs: “Sequence contains more than one matching element”.
Creating Document Sets with the same name or close to the same name.
- Ensure you have K2 Five (5.1) installed.
- Get the K2 Five (5.1) FP3 from Regional Support.
- Install the K2 Five (5.1) FP3 to apply the fix.
- It is recommended ot refresh the browser cache.