I'm having a Content Search Webpart in my publishing page (SharePoint 2013) searching for contacts in a contact list depending on a field value on the publishing page (field of type managed metadata).

When I'm logged in I get the correct data from the webpart. But this page is for anonymous access and when not logged in all I get is "Sorry, something went wrong" and a Correlation ID: 00000000-0000-0000-0000-000000000000 (cannot find anything in the ULS log about this message ether).

I do have anonymous access and users can se the page and all its contents (except for the search result). Also the contacts list has anonymous access.

Even more I have set the AnonymousPermMask64 to AnonymousSearchAccessList as suggesting in several blogs.

Anyone having any ideas?