Symptoms
When you configure the Lotus Notes Connector in Microsoft FAST Search Server 2010 for SharePoint and perform a crawl for a Lotus Notes content source, the crawl enters an infinite loop and is not completed.
Cause
This issue occurs because the Lotus Notes Connector tries to insert an item into the state tracker database in FAST Search Server 2010 for SharePoint that already exists in the database.
Resolution
To resolve this issue, apply the following update:
2597067 Description of the FAST Search Server 2010 for SharePoint hotfix package (fsserver-x-none.msp): December 13, 2011
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.