MYSQL Backup failed because the type of table [cond_instances] is not supported (4044323)

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One database selected but NetVault tries to backup all databases and fails backing up 'performance_schema' database.

Extract from binary log:

Information 2012/09/25 06:08:51 N/A GUI CO-LY-DC3 User 'default' Job id 1080 on F050PSRPZEALL01 rescheduled for immediate execution

Job Message 2012/09/25 06:08:51 1080 Data Plugin F050PSRPZEALL01 Plug-in: 'MySQL APM', Version: '4.1.5' Backup

Job Message 2012/09/25 06:10:50 1080 Data Plugin F050PSRPZEALL01 Successfully backed up file 'C:\ProgramData\MySQL\MySQL Server 5.5\Data\mysql\columns_priv.frm' for 'MyISAM' table 'columns_priv' for database 'mysql'.

Job Message 2012/09/25 06:10:50 1080 Data Plugin F050PSRPZEALL01 Backup of database 'mysql' was successful

Job Message 2012/09/25 06:10:50 1080 Data Plugin F050PSRPZEALL01 Beginning Backup of database: 'performance_schema' from server: 'F050PSRPZEALL01'

Error 2012/09/25 06:10:50 1080 Data Plugin F050PSRPZEALL01 Backup failed because the type of table [cond_instances] is not supported