In this blog post, you’ll learn more about the Sybase Error Unable to find in index ‘%1’ for table ‘%2’ and the reason for receiving this error
Sybase SQL Error Message
Unable to find in index ‘%1’ for table ‘%2’
Reason for this Error
This is an internal error. If it can be reproduced, it should be reported to SAP. You should be able to work around the error by dropping and recreating the index.