diff --git a/pkg/appliance/checks.go b/pkg/appliance/checks.go
index 38febf6a..070de30d 100644
--- a/pkg/appliance/checks.go
+++ b/pkg/appliance/checks.go
@@ -305,7 +305,7 @@ var (
 	ErrControllerVersionMismatch = errors.New("all controllers need to be prepared with the same version when doing a major or minor version upgrade.")
 )
 
-func CheckNeedsMultiControllerUpgrade(stats *openapi.StatsAppliancesList, appliances []openapi.Appliance) ([]openapi.Appliance, error) {
+func CheckNeedsMultiControllerUpgrade(stats *openapi.StatsAppliancesList, upgradeStatusMap map[string]UpgradeStatusResult, appliances []openapi.Appliance) ([]openapi.Appliance, error) {
 	var (
 		errs                   *multierror.Error
 		preparedControllers    []openapi.Appliance
@@ -339,10 +339,10 @@ func CheckNeedsMultiControllerUpgrade(stats *openapi.StatsAppliancesList, applia
 				if res, _ := CompareVersionsAndBuildNumber(highestCurrentVersion, current); res > 0 {
 					highestCurrentVersion = current
 				}
-				us := as.GetUpgrade()
-				if us.GetStatus() == UpgradeStatusReady {
+				us := upgradeStatusMap[app.GetId()]
+				if us.Status == UpgradeStatusReady {
 					preparedControllers = append(preparedControllers, app)
-					targetVersion, err := ParseVersionString(us.GetDetails())
+					targetVersion, err := ParseVersionString(us.Details)
 					if err != nil {
 						errs = multierror.Append(errs, err)
 						continue
@@ -365,21 +365,19 @@ func CheckNeedsMultiControllerUpgrade(stats *openapi.StatsAppliancesList, applia
 	// check if prepared controllers has mismatching version
 	preparedClone := slices.Clone(preparedControllers)
 	for i, a := range preparedClone {
-		for _, s := range stats.GetData() {
-			if a.GetId() != s.GetId() {
-				continue
-			}
-
-			us := s.GetUpgrade()
-			targetVersion, err := ParseVersionString(us.GetDetails())
-			if err != nil {
-				errs = multierror.Append(errs, err)
-				continue
-			}
-			if res, _ := CompareVersionsAndBuildNumber(highestPreparedVersion, targetVersion); res < 0 {
-				mismatchControllers = append(mismatchControllers, a)
-				preparedControllers = append(preparedControllers[:i], preparedControllers[i+1:]...)
-			}
+		us, ok := upgradeStatusMap[a.GetId()]
+		if !ok {
+			errs = multierror.Append(errs, ErrNoApplianceStats)
+			continue
+		}
+		targetVersion, err := ParseVersionString(us.Details)
+		if err != nil {
+			errs = multierror.Append(errs, err)
+			continue
+		}
+		if res, _ := CompareVersionsAndBuildNumber(highestPreparedVersion, targetVersion); res < 0 {
+			mismatchControllers = append(mismatchControllers, a)
+			preparedControllers = append(preparedControllers[:i], preparedControllers[i+1:]...)
 		}
 	}
 
diff --git a/pkg/appliance/checks_test.go b/pkg/appliance/checks_test.go
index 62a7f0be..69adc9e9 100644
--- a/pkg/appliance/checks_test.go
+++ b/pkg/appliance/checks_test.go
@@ -673,7 +673,16 @@ func TestCheckNeedsMultiControllerUpgrade(t *testing.T) {
 				stats.Data = append(stats.Data, d.stat)
 				argAppliances = append(argAppliances, d.appliance)
 			}
-			got, err := CheckNeedsMultiControllerUpgrade(&stats, argAppliances)
+			upgradeStatusMap := map[string]UpgradeStatusResult{}
+			for _, s := range stats.GetData() {
+				us := s.GetUpgrade()
+				upgradeStatusMap[s.GetId()] = UpgradeStatusResult{
+					Status:  us.GetStatus(),
+					Details: us.GetDetails(),
+					Name:    s.GetName(),
+				}
+			}
+			got, err := CheckNeedsMultiControllerUpgrade(&stats, upgradeStatusMap, argAppliances)
 			if (err != nil) != tt.wantErr {
 				t.Errorf("CheckNeedsMultiControllerUpgrade() error = %v, wantErr %v", err, tt.wantErr)
 				return
diff --git a/pkg/appliance/mock.go b/pkg/appliance/mock.go
index 1153d551..b9a19353 100644
--- a/pkg/appliance/mock.go
+++ b/pkg/appliance/mock.go
@@ -228,7 +228,7 @@ func (cts *CollectiveTestStruct) GenerateStubs(appliances []openapi.Appliance, s
 					continue
 				}
 				us := s.GetUpgrade()
-				if count <= 0 {
+				if us.GetStatus() != UpgradeStatusIdle && count <= 0 {
 					us.SetStatus(UpgradeStatusReady)
 				} else if count == 1 {
 					us.SetStatus(UpgradeStatusIdle)
@@ -406,7 +406,7 @@ func GenerateApplianceWithStats(activeFunctions []string, name, hostname, curren
 	currentStatsData.SetOnline(online)
 	currentStatsData.SetVolumeNumber(0)
 	currentStatsData.SetUpgrade(openapi.StatsAppliancesListAllOfUpgrade{
-		Status:  &upgradeStatus,
+		Status:  openapi.PtrString(upgradeStatus),
 		Details: openapi.PtrString(targetVersion),
 	})
 
diff --git a/pkg/appliance/upgrade.go b/pkg/appliance/upgrade.go
index 74dc3150..ccf79501 100644
--- a/pkg/appliance/upgrade.go
+++ b/pkg/appliance/upgrade.go
@@ -48,6 +48,7 @@ type UpgradePlan struct {
 	Skipping                []SkipUpgrade
 	BackupIds               []string
 	stats                   *openapi.StatsAppliancesList
+	upgradeStatusMap        map[string]UpgradeStatusResult
 	adminHostname           string
 	primary                 *openapi.Appliance
 	allAppliances           []openapi.Appliance
@@ -55,9 +56,10 @@ type UpgradePlan struct {
 
 func NewUpgradePlan(appliances []openapi.Appliance, stats *openapi.StatsAppliancesList, upgradeStatusMap map[string]UpgradeStatusResult, adminHostname string, filter map[string]map[string]string, orderBy []string, descending bool) (*UpgradePlan, error) {
 	plan := UpgradePlan{
-		adminHostname: adminHostname,
-		stats:         stats,
-		allAppliances: appliances,
+		adminHostname:    adminHostname,
+		stats:            stats,
+		upgradeStatusMap: upgradeStatusMap,
+		allAppliances:    appliances,
 	}
 
 	primary, err := FindPrimaryController(appliances, plan.adminHostname, false)
@@ -289,7 +291,7 @@ func (up *UpgradePlan) GetPrimaryController() *openapi.Appliance {
 
 func (up *UpgradePlan) Validate() error {
 	// we check if all controllers need upgrade very early
-	if _, err := CheckNeedsMultiControllerUpgrade(up.stats, up.allAppliances); err != nil {
+	if _, err := CheckNeedsMultiControllerUpgrade(up.stats, up.upgradeStatusMap, up.allAppliances); err != nil {
 		return err
 	}
 	return nil