diff --git a/AzureBasicLoadBalancerUpgrade/module/AzureBasicLoadBalancerUpgrade/AzureBasicLoadBalancerUpgrade.psd1 b/AzureBasicLoadBalancerUpgrade/module/AzureBasicLoadBalancerUpgrade/AzureBasicLoadBalancerUpgrade.psd1
index a20f9c57..5dd5b9ba 100644
--- a/AzureBasicLoadBalancerUpgrade/module/AzureBasicLoadBalancerUpgrade/AzureBasicLoadBalancerUpgrade.psd1
+++ b/AzureBasicLoadBalancerUpgrade/module/AzureBasicLoadBalancerUpgrade/AzureBasicLoadBalancerUpgrade.psd1
@@ -12,7 +12,7 @@
     RootModule = 'AzureBasicLoadBalancerUpgrade'
 
     # Version number of this module.
-    ModuleVersion = '2.4.2'
+    ModuleVersion = '2.4.3'
 
     # Supported PSEditions
     # CompatiblePSEditions = @()
@@ -107,7 +107,7 @@
             # IconUri = ''
 
             # ReleaseNotes of this module
-            ReleaseNotes = 'Fix skipMigrateNATPoolsToNATRules parameter not found in VMSS upgrades'
+            ReleaseNotes = 'Fix missed VMSS backups in -multiLBConfig mode'
 
             # Prerelease string of this module
             # Prerelease = ''
diff --git a/AzureBasicLoadBalancerUpgrade/module/AzureBasicLoadBalancerUpgrade/modules/ScenariosMigration/ScenariosMigration.psm1 b/AzureBasicLoadBalancerUpgrade/module/AzureBasicLoadBalancerUpgrade/modules/ScenariosMigration/ScenariosMigration.psm1
index ac9890ea..01425874 100644
--- a/AzureBasicLoadBalancerUpgrade/module/AzureBasicLoadBalancerUpgrade/modules/ScenariosMigration/ScenariosMigration.psm1
+++ b/AzureBasicLoadBalancerUpgrade/module/AzureBasicLoadBalancerUpgrade/modules/ScenariosMigration/ScenariosMigration.psm1
@@ -112,12 +112,6 @@ function PublicLBMigrationVmss {
     Write-Progress -Status "Public Load Balancer with VMSS backend detected. Initiating Public Load Balancer Migration" -PercentComplete 0 @progressParams
     log -Message "[PublicLBMigration] Public Load Balancer with VMSS backend found. Initiating Public Load Balancer Migration"
 
-    # Creating a vmss object before it gets changed as a reference for the backend pool migration
-    Write-Progress -Status "Backing up VMSS" -ParentId 4 @progressParams
-
-    # Backup VMSS Configurations
-    BackupVmss -BasicLoadBalancer $BasicLoadBalancer -RecoveryBackupPath $RecoveryBackupPath
-
     # Remove Public IP Configurations from VMSS
     Write-Progress -Status "Removing Public IP Configurations from VMSS" -PercentComplete ((1 / 14) * 100) @progressParams
     RemoveVmssPublicIPConfig -BasicLoadBalancer $BasicLoadBalancer
@@ -201,13 +195,6 @@ function InternalLBMigrationVmss {
 
     log -Message "[InternalLBMigration] Internal Load Balancer with VMSS backend detected. Initiating Internal Load Balancer Migration"
 
-    # Creating a vmss object before it gets changed as a reference for the backend pool migration
-    Write-Progress -Status "Backing up VMSS" -PercentComplete ((1/14) * 100) @progressParams
-
-    # Backup VMSS Configurations
-    Write-Progress -Status "Backing up VMSS Configurations" -PercentComplete ((2/14) * 100) @progressParams
-    BackupVmss -BasicLoadBalancer $BasicLoadBalancer -RecoveryBackupPath $RecoveryBackupPath
-
     # Remove Public IP Configurations from VMSS
     Write-Progress -Status "Removing Public IP Configurations from VMSS" -PercentComplete ((3/14) * 100) @progressParams
     RemoveVmssPublicIPConfig -BasicLoadBalancer $BasicLoadBalancer
@@ -961,11 +948,29 @@ function LBMigrationPrep {
             Activity = "Preparing load balancer '$($migrationConfig.BasicLoadBalancer.Name)' for migration"
             Parent                   = 3
         }
-        Write-Progress -Status "Preparing load balancer '$($migrationConfig.BasicLoadBalancer.Name)' for migration" -PercentComplete ((1/4) * 100) @progressParams
+        Write-Progress -Status "Preparing load balancer '$($migrationConfig.BasicLoadBalancer.Name)' for migration" -PercentComplete ((1/5) * 100) @progressParams
+
+        try {
+            $errorActionPreference = 'Stop'
 
-        # Backup Basic Load Balancer Configurations
-        Write-Progress -Status "Backing up Basic Load Balancer Configurations" -PercentComplete ((2/4) * 100) @progressParams
-        BackupBasicLoadBalancer -BasicLoadBalancer $migrationConfig.BasicLoadBalancer -RecoveryBackupPath $RecoveryBackupPath
+            # Backup Basic Load Balancer Configurations
+            Write-Progress -Status "Backing up Basic Load Balancer Configurations" -PercentComplete ((2/5) * 100) @progressParams
+            BackupBasicLoadBalancer -BasicLoadBalancer $migrationConfig.BasicLoadBalancer -RecoveryBackupPath $RecoveryBackupPath
+
+            # Backup VMSS Configurations
+            # TO-DO will create a VMSS backup for each LB of the same VMSS but since -multiLBConfig is not restricted to shared backends, there may be different VMSSes anyway
+            if ($migrationConfig.scenario.backendType -eq 'VMSS') {
+                Write-Progress -Status "Backing up VMSS Configurations" -PercentComplete ((3/5) * 100) @progressParams
+                BackupVmss -BasicLoadBalancer $migrationConfig.BasicLoadBalancer -RecoveryBackupPath $RecoveryBackupPath
+            }
+        }
+        catch {
+            log -message "[LBMigrationPrep] Failed backup preparation step for '$($migrationConfig.BasicLoadBalancer.Name)'"
+            throw $_
+        }
+    }
+
+    ForEach ($migrationConfig in $migrationConfigs) {
 
         # get a reference copy of the vmss prior to modifying it
         If ($migrationConfig.scenario.backendType -eq 'VMSS') {
@@ -974,12 +979,12 @@ function LBMigrationPrep {
 
         If ($migrationConfig.scenario.ExternalOrInternal -eq 'External') {
             # Migrate public IP addresses on Basic LB to static (if dynamic)
-            Write-Progress -Status "Migrating public IP addresses on Basic LB to static (if dynamic)" -PercentComplete ((3/4) * 100) @progressParams
+            Write-Progress -Status "Migrating public IP addresses on Basic LB to static (if dynamic)" -PercentComplete ((4/5) * 100) @progressParams
             PublicIPToStatic -BasicLoadBalancer $migrationConfig.BasicLoadBalancer
         }
 
         # Deletion of Basic Load Balancer and Delete Basic Load Balancer
-        Write-Progress -Status "Deletion of Basic Load Balancer and Delete Basic Load Balancer" -PercentComplete ((4/4) * 100) -Completed @progressParams
+        Write-Progress -Status "Deletion of Basic Load Balancer and Delete Basic Load Balancer" -PercentComplete ((5/5) * 100) -Completed @progressParams
         RemoveBasicLoadBalancer -BasicLoadBalancer $migrationConfig.BasicLoadBalancer -BackendType $migrationConfig.scenario.backendType
 
         log -message "[LBMigrationPrep] Completed preparing load balancer '$($migrationConfig.BasicLoadBalancer.Name)' for migration"
diff --git a/AzureBasicLoadBalancerUpgrade/module/AzureBasicLoadBalancerUpgrade/modules/Start-AzBasicLoadBalancerUpgrade/Start-AzBasicLoadBalancerUpgrade.psm1 b/AzureBasicLoadBalancerUpgrade/module/AzureBasicLoadBalancerUpgrade/modules/Start-AzBasicLoadBalancerUpgrade/Start-AzBasicLoadBalancerUpgrade.psm1
index 4edc27f8..e28c4188 100644
--- a/AzureBasicLoadBalancerUpgrade/module/AzureBasicLoadBalancerUpgrade/modules/Start-AzBasicLoadBalancerUpgrade/Start-AzBasicLoadBalancerUpgrade.psm1
+++ b/AzureBasicLoadBalancerUpgrade/module/AzureBasicLoadBalancerUpgrade/modules/Start-AzBasicLoadBalancerUpgrade/Start-AzBasicLoadBalancerUpgrade.psm1
@@ -293,8 +293,8 @@ function Start-AzBasicLoadBalancerUpgrade {
                 $StdLoadBalancerName = $LBConfig.standardLoadBalancerName
             }
             else {
-                $LBConfig.standardLoadBalancerName = $BasicLoadBalancer.Name
-                $StdLoadBalancerName = $BasicLoadBalancer.Name
+                $LBConfig.standardLoadBalancerName = $LBConfig.basicLoadBalancer.Name
+                $StdLoadBalancerName = $LBConfig.basicLoadBalancer.Name
             }
 
             $BasicLoadBalancer = $LBConfig.basicLoadBalancer
@@ -325,7 +325,7 @@ function Start-AzBasicLoadBalancerUpgrade {
     Write-Progress -Activity "Preparing for Migration" -Status "Preparing for Migration" -Id 3 -PercentComplete 0
     log -Message "[Start-AzBasicLoadBalancerUpgrade] Preparing for migration by backing up and deleteing the basic LB(s)"
     $migrationConfigs = LBMigrationPrep -migrationConfigs $migrationConfigs -RecoveryBackupPath $RecoveryBackupPath
-    Write-Progress -Activity "Preparing for Migration" -Status "Preparing for Migration" -Completed -Id 3
+    Write-Progress -Activity "Preparing for Migration" -Status "Completed preparing for migration" -Completed -Id 3
 
     # initiate the migration of each load balancer in the migration config array
     Write-Progress -Activity "Starting Migration" -Status "Starting Migration" -Id 4