PowerShell requires single quote around args

[bertday]

@ILSR-GIS-DATA reported that this did not work in Windows PowerShell:

PS C:\[redacted]> bb bdc-availability download states ca,vt fixed -t 10,40,50,71,72 "C:\[redacted]\State_individual_files"
ERROR: Unknown state md va

(note: states have been redacted and replaced with different ones)

However, it worked when single quotes were placed around the states string and tech-code string.

Is this a parsing issue specific to PowerShell?