Performing Output to file - syntax error in line 1 near ' ■d'

[omkarg81]

The Export-AzViz performs all the actions and logs them to powershell window all fine, up until it executes the last step of performing the action "Output to file" where it fails with the error -

Performing the operation "Output to File" on target "C:\Users<username>\AppData\Local\Temp\temp.dot".
Error: C:\Users<username>\AppData\Local\Temp\temp.dot: syntax error in line 1 near ' ■d'

Irrespective of which Resource Group I target, I always get this error. Please suggest.
Attached full log dump for more details.
AzViz Log dump.txt

[omkarg81]

Never mind. After having installed all pre-requisites and modules, it only needed a powershell window closure and opening up a new one, before running the Export command. As I did that, the Export did create the png as expected. Thanks.