Bug in Component Pattern in assembly. [Solidworks 2009 SP4]

We are facing 1 error in Solidworks 2009 while patterning & modifying pattern of the components in assembly file.

Randomly any of the components get suppressed from the patterned feature.

We have recorded the macro of the same.

Please, find the bellow attached files in the zip.

SolidworksAssemblies