Symptoms
We've upgraded one of our SharePoint 2013 sites that runs in 2010 mode to SharePoint 2013 native mode. After doing so the worklist web part doesn't work anymore in IE. We're able to get results back using the web part via Chrome but it fails to work in IE. We'e on the latest version of K2 4.6.8 that should support SP 2013 in native mode.
Diagnoses
The "Sharepoint 2010 worklist webpart" is only supported in Sharepoint 2010 sites or Sharepoint 2013 sites running in Sharepoint 2010 mode. The equivalent worklist in Sharepoint 2013 site, whether upgraded from a Sharepoint 2010 site or a site created in native Sharepoint 2013 mode, is the Worklist App Part that is a part of the K2 for Sharepoint 1.0.1 installation and K2's App model integration with Sharepoint 2013.
The Process Portal or any Sharepoint 2010 webparts are not supported in a Sharepoint 2013 site collection. Please see the limitation "Limitations for K2 for SharePoint 2013 in 2010 Compatibility Mode" section of the KB article:
"K2 Process Portal Sites will continue to function in sites that are in SharePoint 2010 mode. However, if the site is upgraded to SharePoint 2013 mode, the K2 Process Portal site will no longer function and will not be supported."
See also the followin KB article:
How To: Move from SharePoint Server 2010 to SharePoint Server 2013 in a K2 environment
Resolution
Install K2 Smartforms and K2 for Sharepoint 2013 to make use of the K2 Worklist App Parts that comes with Sharepoint 2013 Apps Integration when using Sharepoint 2013 Native Mode.
