Add-PnPFile multiple times causes "format-default : The collection has not been initialized." error

[BurtJohnsonfbl]

Using 1.11.0 PnP.PowerShell

$SiteURL = "https://mytenant.sharepoint.com"
$DestinationPath = "/Shared Documents" #Server Relative Path of the Library
  
# Get Credentials to connect
$userName = "my_sharepoint_admin_id@domain.com"
$PWord = ConvertTo-SecureString -String "********" -AsPlainText -Force
$Cred = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $userName, $PWord

# Connect to PnP Online
Connect-PnPOnline -Url $SiteURL -Credentials $Cred
      
# Powershell PnP to upload file to sharepoint online
Add-PnPFile -Path $SourceFilePath1 -Folder $DestinationPath
Add-PnPFile -Path $SourceFilePath2 -Folder $DestinationPath

$SourceFilePath1 uploads fine. Powershell then throws the following error.
format-default : The collection has not been initialized. It has not been requested or the request has not been
executed. It may need to be explicitly requested.
+ CategoryInfo : NotSpecified: (:) [format-default], CollectionNotInitializedException
+ FullyQualifiedErrorId : Microsoft.SharePoint.Client.CollectionNotInitializedException,Microsoft.PowerShell.Comma
nds.FormatDefaultCommand

If I switch the last 2 lines around, the first one is always uploaded and the second one gives the error.

I tried a Start-Sleep -Seconds 120 between the two to no avail.

Thanks, Burt