Keyword in Context (KWIC) does not work properly for XML/Tiff documents in Information Management Platform versions earlier than 6.3 when Document Security is enabled. You are using a version of Information Management Platform earlier than 6.3, have Keyword in Context (KWIC) feature enabled in ZyFIND or Web Client and XML/Tiff documents are stored in the index.
This software defect is related to an issue where KWIC would erroneously display the document's GUID that has been fixed in Information Management Platform 6.3.
Upgrade to Information Management Platform 6.3 or newer. As a workaround, you can consider using TXT/Tiff rather than of XML/Tiff documents. They should work fine when Document Security and KWIC are enabled.
6.1; 6.1 Service Pack 1; 6.1 Service Pack 2; 6.2; 6.2 Service Pack 2