diff --git a/src/Umbraco.Core/Models/CultureImpact.cs b/src/Umbraco.Core/Models/CultureImpact.cs
index 2f4364b61b..fec02093d7 100644
--- a/src/Umbraco.Core/Models/CultureImpact.cs
+++ b/src/Umbraco.Core/Models/CultureImpact.cs
@@ -21,7 +21,7 @@ namespace Umbraco.Cms.Core.Models
         /// <param name="savingCultures"></param>
         /// <param name="defaultCulture"></param>
         /// <returns></returns>
-        public static string? GetCultureForInvariantErrors(IContent? content, string[] savingCultures, string? defaultCulture)
+        public static string? GetCultureForInvariantErrors(IContent? content, string?[] savingCultures, string? defaultCulture)
         {
             if (content == null) throw new ArgumentNullException(nameof(content));
             if (savingCultures == null) throw new ArgumentNullException(nameof(savingCultures));
diff --git a/src/Umbraco.Web.BackOffice/Controllers/ContentController.cs b/src/Umbraco.Web.BackOffice/Controllers/ContentController.cs
index 5e531c1eb4..66c103b810 100644
--- a/src/Umbraco.Web.BackOffice/Controllers/ContentController.cs
+++ b/src/Umbraco.Web.BackOffice/Controllers/ContentController.cs
@@ -843,7 +843,7 @@ namespace Umbraco.Cms.Web.BackOffice.Controllers
             var defaultCulture = _allLangs.Value.Values.FirstOrDefault(x => x.IsDefault)?.IsoCode;
             var cultureForInvariantErrors = CultureImpact.GetCultureForInvariantErrors(
                 contentItem.PersistedContent,
-                contentItem.Variants.Where(x => x.Save).Select(x => x.Culture).WhereNotNull().ToArray(),
+                contentItem.Variants.Where(x => x.Save).Select(x => x.Culture).ToArray(),
                 defaultCulture);
 
             //get the updated model