diff --git a/src/Umbraco.Core/PropertyEditors/MediaPicker3Configuration.cs b/src/Umbraco.Core/PropertyEditors/MediaPicker3Configuration.cs
index ec8f7c3378..7bffc484bd 100644
--- a/src/Umbraco.Core/PropertyEditors/MediaPicker3Configuration.cs
+++ b/src/Umbraco.Core/PropertyEditors/MediaPicker3Configuration.cs
@@ -15,7 +15,7 @@ public class MediaPicker3Configuration : IIgnoreUserStartNodesConfig
     public NumberRange ValidationLimit { get; set; } = new();
 
     [ConfigurationField("startNodeId")]
-    public Udi? StartNodeId { get; set; }
+    public Guid? StartNodeId { get; set; }
 
     [ConfigurationField("enableLocalFocalPoint")]
     public bool EnableLocalFocalPoint { get; set; }
diff --git a/src/Umbraco.Core/PropertyEditors/MultiNodePickerConfigurationTreeSource.cs b/src/Umbraco.Core/PropertyEditors/MultiNodePickerConfigurationTreeSource.cs
index b62519fd5e..aac820c117 100644
--- a/src/Umbraco.Core/PropertyEditors/MultiNodePickerConfigurationTreeSource.cs
+++ b/src/Umbraco.Core/PropertyEditors/MultiNodePickerConfigurationTreeSource.cs
@@ -22,7 +22,7 @@ public class MultiNodePickerConfigurationTreeSource
 
     [JsonPropertyName("id")]
     [DataMember(Name = "id")]
-    public Udi? StartNodeId { get; set; }
+    public Guid? StartNodeId { get; set; }
 }
 
 [DataContract]
diff --git a/src/Umbraco.Infrastructure/PropertyEditors/MediaPicker3PropertyEditor.cs b/src/Umbraco.Infrastructure/PropertyEditors/MediaPicker3PropertyEditor.cs
index 3f4b5f3cf6..e3abf0035f 100644
--- a/src/Umbraco.Infrastructure/PropertyEditors/MediaPicker3PropertyEditor.cs
+++ b/src/Umbraco.Infrastructure/PropertyEditors/MediaPicker3PropertyEditor.cs
@@ -208,7 +208,7 @@ public class MediaPicker3PropertyEditor : DataEditor
                     continue;
                 }
 
-                GuidUdi? startNodeGuid = configuration.StartNodeId as GuidUdi ?? null;
+                Guid? startNodeGuid = configuration.StartNodeId;
 
                 // make sure we'll clean up the temporary file if the scope completes
                 using IScope scope = _scopeProvider.CreateScope();
@@ -218,7 +218,7 @@ public class MediaPicker3PropertyEditor : DataEditor
                 // there are multiple allowed media types matching the file extension
                 using Stream fileStream = temporaryFile.OpenReadStream();
                 IMedia mediaFile = _mediaImportService
-                    .ImportAsync(temporaryFile.FileName, fileStream, startNodeGuid?.Guid, mediaWithCropsDto.MediaTypeAlias, userKey)
+                    .ImportAsync(temporaryFile.FileName, fileStream, startNodeGuid, mediaWithCropsDto.MediaTypeAlias, userKey)
                     .GetAwaiter()
                     .GetResult();