z/os source code data scan error

In RTC 4.0.0.1 environment , the z/os source code data scan goes in error with errror messages for copy members:
2012-12-03 11:55:09,553 [ ccm: Reset Source Control Code Data] Error eam.enterprise.internal.metadata.scan,ScanMetadata - Exception occurred while processing file /MB/zOSsrc/P70CWSCO.cpy
2012-12-03 11:55:09,555 [ ccm: Reset Source Control Code Data] Error eam.enterprise.internal.metadata.scan,ScanMetadata - Exception = java.lang.StringIndexOutOfBounfsException
2012-12-03 11:55:09,557 [ ccm: Reset Source Control Code Data] Error eam.enterprise.internal.metadata.scan,ScanMetadata - Exception message = null
Initially we was thinking the problems was related to a given "copy" and we 'remove' it in order to complete the scan for the all the objects in this 'project area', but unfortunately we receive the same error for a lot of other copy cobol...
Thanks in advance and bye
2012-12-03 11:55:09,553 [ ccm: Reset Source Control Code Data] Error eam.enterprise.internal.metadata.scan,ScanMetadata - Exception occurred while processing file /MB/zOSsrc/P70CWSCO.cpy
2012-12-03 11:55:09,555 [ ccm: Reset Source Control Code Data] Error eam.enterprise.internal.metadata.scan,ScanMetadata - Exception = java.lang.StringIndexOutOfBounfsException
2012-12-03 11:55:09,557 [ ccm: Reset Source Control Code Data] Error eam.enterprise.internal.metadata.scan,ScanMetadata - Exception message = null
Initially we was thinking the problems was related to a given "copy" and we 'remove' it in order to complete the scan for the all the objects in this 'project area', but unfortunately we receive the same error for a lot of other copy cobol...
Thanks in advance and bye