Parameter not valid At ExcelPlotter.psm

[maxferrario-msf]

Hi,
when launching New-NetworkVisualization -CTStraffic -BaselineDir .\data\ I get the following error

Parameter not valid
At C:\Program Files\WindowsPowerShell\Modules\Network-Performance-Visualization\2023.4.25.13\ExcelPlotter.psm1:230 char:17
+ ...             $chart.SeriesCollection($seriesNum).format.Line.weight =  ...
+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : OperationStopped: (:) [], COMException
    + FullyQualifiedErrorId : System.Runtime.InteropServices.COMException

The Excel file is created, but I think its missing part of the content (see https://msfintl-my.sharepoint.com/:x:/g/personal/massimo_ferrario_rome_msf_org/EfIWdYtq-y1In2KO8RudUB8B_ZJiFd1LyXZWPTdsYq3aVw?e=lTdy0M).
I'm using version 2023.4.25.13.
Any idea on how to fix it?
Thanks,
Massimo