The specified wildcard character pattern is not valid

If there is [ character in the filename, the following error is generated for Receive-WinSCPItem, Send-WinSCPItem commands under Windows:

The specified wildcard character pattern is not valid: file[name.txt

Under Windows, the [ character is legal in the filename.
No problem with the other regex characters: ,+^$(){}]

Escape did not help: \[

Those cmdlets are from 3rd party PowerShell module. And there's no such error message in WinSCP itself.

Anyway, to escape the [ in an file mask in WinSCP itself, use [[].
See https://winscp.net/eng/docs/file_mask#basic

Thank you sir, I will try it and if I face any issue, I will update you here or will start my own thread.