The 'ConvertTo-PnPClientSidePage' command was found in the module 'PnP.PowerShell', but the module could not be loaded?

[myatix]

I have just installed the latest version of PnP.PowerShell and am getting the following error?

Error : The 'ConvertTo-PnPClientSidePage' command was found in the module 'PnP.PowerShell', but the module could not be loaded. For more information, run 'Import-Module PnP.PowerShell'.

# Connect to the web holding the pages to modernize  
#Install-Module -Name "PnP.PowerShell"
Import-Module PnP.PowerShell
try {  
    $SiteUrl = "https://<tenant>.sharepoint.com/sites/teamsite"  
    $sourcePageName = $false  
    $folderLocation = $(Get-Location)  
    Connect-PnPOnline -Url $SiteUrl -Interactive
    sleep 5  
    try {  
        Write-Host "Enabling the modern page feature." -ForegroundColor Green  
        Enable-PnPFeature -Identity "B6917CB1-93A0-4B97-A84D-7CF49975D4EC" -Scope Web -Force  
    } catch {}  
    $pages = Get-PnPListItem -List SitePages -PageSize 500  
    Write-Host "Starting the modernization." -ForegroundColor Green  
    Foreach($page in $pages) {  
            $pageName = $page.FieldValues["FileLeafRef"]  
            if ($page.FieldValues["ClientSideApplicationId"] -eq "b6917cb1-93a0-4b97-a84d-7cf49975d4ec") {  
                Write-Host -foregroundcolor Yellow ""
                $page.FieldValues["FileLeafRef"]
                " is a modern page."  
            } else {  
                Write-Host "Converting $($pageName) to modern page" -ForegroundColor Cyan  
                ConvertTo-PnPClientSidePage -Identity $page.FieldValues["ID"] `
                                        -Overwrite ` - TakeSourcePageName: $sourcePageName `
                                        -LogType File ` - LogFolder $folderLocation `
                                        -LogSkipFlush ` - KeepPageCreationModificationInformation `
                                        -CopyPageMetadata  
        }  
    }  
    Write-Host "The conversion log file." -ForegroundColor Green  
    Save-PnPClientSidePageConversionLog  
    Write-Host "Successfully converted to modern pages." -ForegroundColor Green  
    Disconnect-PnPOnline  
      }  
      catch {  
        Write-Host -ForegroundColor Red 'Error ', ':' $Error[0].ToString();  
         sleep 10  
      }  

Powershell version: 7.1.5
PnP.Powershell: 1.8.0

Any ideas how I get around this?