When I analyse counters with single thread everything is ok but when I choose two or more threads I'm getting loads of errors like the ones below:
 
The variable '$SeriesOfCounterValues' cannot be retrieved because it has not be
en set.

+ CategoryInfo          : InvalidOperation: (SeriesOfCounterValues:Token)

[], RuntimeException

+ FullyQualifiedErrorId : VariableIsUndefined

Cannot find type [System.Windows.Forms.DataVisualization.Charting.Series]: make
sure the assembly containing this type is loaded.

+ CategoryInfo          : InvalidType: (:) [New-Object], PSArgumentExcepti

on

+ FullyQualifiedErrorId : TypeNotFound,Microsoft.PowerShell.Commands.NewOb

jectCommand
 
The analysis finishes but some counters are missing in the report.