Powershell VPG mgmt has unexpected results

First of all, this script doesn’t update $_.Recovery.DefaultFolderIdentifier like it was meant to.
Second, it removes $_.Recovery.DefaultDatastoreIdentifier even if I try to put a value.

Can anyone tell me what’s going on?

$BaseURL = “https://zvm_ip:port/v1/”

$VPGListUrl = $BaseURL+”vpgs”
$VPGList = Invoke-RestMethod -Method GET -Uri $VPGListUrl -Headers $ZertoSessionHeader -ContentType $TypeJSON
$VPGIdentifier = $VPGList[0].VpgIdentifier

$JSONIdentifier = @{VpgIdentifier = “$VPGIdentifier”} | ConvertTo-Json

$VPGSettingsIdentifierUrl = $BaseURL+”vpgsettings”
$VPGSettingsIdentifier = Invoke-RestMethod -Method POST -Uri $VPGSettingsIdentifierUrl -Body $JSONIdentifier -Headers $ZertoSessionHeader -ContentType $Type

$VPGSettingsUrl = $BaseURL+”vpgsettings/”+$VPGSettingsIdentifier
$VPGSettings = Invoke-RestMethod -Method GET -Uri $VPGSettingsUrl -ContentType $TypeJSON -Headers $ZertoSessionHeader

$VPGJSON = @{Recovery = @{DefaultFolderIdentifier = “$RecoveryFolder”}} | ConvertTo-Json

$VPGSettingsPutURL = $BaseURL+”vpgSettings/”+$VPGSettingsIdentifier+”/recovery”
$VPGSettingsPut = Invoke-RestMethod -Method PUT -Uri $VPGSettingsPutURL -Body $VPGJSON -ContentType $TypeJSON -Headers $zertosessionHeader

$VPGCommitUrl = $BaseURL+”vpgsettings/”+$VPGSettingsIdentifier+”/commit”
$VPGCommit = Invoke-RestMethod -Method POST -Uri $VPGCommitUrl -Headers $ZertoSessionHeader