Get-PnPFlow returns "Authentication Failed" error

[renewtx]

Hello,
For the below we use:

• PowerShell v7.4.5
• PnP PowerShell v2.99.35-nightly (had to use this due to another issue)

We have a PnP PowerShell script that basically queries the Power Automate environment for flows ... this was working fine until Sept when the PnP team implemented the change that now requires an App Reg to authenticate. We've implemented this change and set up two different PnP PowerShell App Reg instances -- one to use with interactive logins and another to use for non-interactive (app only) logins. The interactive app reg appears to be working fine.

For the script that interacts with the PowerAutomate env (without an interactive login), we previously used

   Connect-PnPOnline -Url $trgtUrl -Credentials $trgtCreds

and immediately after connection we ran this statement ...

   $flows = Get-PnPFlow -Environment $environmentName -SharingStatus Personal

At the time this all worked as expected.

To support the new connection requirements pushed out in September, and after creating the necessary app reg instances, we have now modified the script to connect as follows:

  Connect-PnPOnline ($tenantName + ".sharepoint.com") -ClientId $clientId -Tenant ($tenantName + ".onmicrosoft.com") - 
  CertificatePath $certPath -CertificatePassword (convertto-securestring -String "password" -AsPlainText -Force)

This appears to set up a valid connection which I can verify using Get-PnPContext (which returns valid context information) and I can execute other PnP commands under this context. However, when we now call

     $flows = Get-PnPFlow -Environment $environmentName 

we get the error "Get-PnPFlow: Authentication failed." Is this a new issue? Or is other information required to now execute this Get-PnPFlow call??

Also, we used to use a parameter -SharingStatus, as in

    Get-PnPFlow: A parameter cannot be found that matches parameter name 'SharingStatus'.

which now no longer seems to be recognized -- did that change as well?? Is there updated documentation for this and other PowerAutomate-related PnP commands?