diff --git a/lib/mv_web/live/member_live/form.ex b/lib/mv_web/live/member_live/form.ex
index d384a45..b319fa1 100644
--- a/lib/mv_web/live/member_live/form.ex
+++ b/lib/mv_web/live/member_live/form.ex
@@ -375,7 +375,9 @@ defmodule MvWeb.MemberLive.Form do
       [error | _] ->
         # Try to extract message from other error types
         case error do
-          %{message: message} when is_binary(message) -> message
+          %{message: message} when is_binary(message) ->
+            message
+
           error when is_struct(error) ->
             # Try to use Ash.ErrorKind protocol if available
             try do
@@ -383,7 +385,9 @@ defmodule MvWeb.MemberLive.Form do
             rescue
               Protocol.UndefinedError -> gettext("Failed to save member. Please try again.")
             end
-          _ -> gettext("Failed to save member. Please try again.")
+
+          _ ->
+            gettext("Failed to save member. Please try again.")
         end
 
       _ ->
diff --git a/priv/repo/seeds.exs b/priv/repo/seeds.exs
index 6294353..2e7543a 100644
--- a/priv/repo/seeds.exs
+++ b/priv/repo/seeds.exs
@@ -166,7 +166,7 @@ case Accounts.User
     # User already exists (e.g., via OIDC) - assign admin role
     existing_admin_user
     |> Ash.Changeset.for_update(:update, %{})
-    |> Ash.Changeset.manage_relationship(:role, admin_role, type: :replace)
+    |> Ash.Changeset.manage_relationship(:role, admin_role, type: :append_and_remove)
     |> Ash.update!()
 
   {:ok, nil} ->
@@ -177,7 +177,7 @@ case Accounts.User
     |> then(fn user ->
       user
       |> Ash.Changeset.for_update(:update, %{})
-      |> Ash.Changeset.manage_relationship(:role, admin_role, type: :replace)
+      |> Ash.Changeset.manage_relationship(:role, admin_role, type: :append_and_remove)
       |> Ash.update!()
     end)
 
diff --git a/test/mv_web/member_live/form_error_handling_test.exs b/test/mv_web/member_live/form_error_handling_test.exs
index 4f76fca..859402e 100644
--- a/test/mv_web/member_live/form_error_handling_test.exs
+++ b/test/mv_web/member_live/form_error_handling_test.exs
@@ -39,6 +39,7 @@ defmodule MvWeb.MemberLive.FormErrorHandlingTest do
 
       # Should show flash error message
       assert has_element?(view, "#flash-group")
+
       assert html =~ "error" or html =~ "Error" or html =~ "Fehler" or
                html =~ "failed" or html =~ "fehlgeschlagen" or
                html =~ "Validation failed" or html =~ "Validierung fehlgeschlagen"
@@ -64,6 +65,7 @@ defmodule MvWeb.MemberLive.FormErrorHandlingTest do
 
       # Should show flash error message
       assert has_element?(view, "#flash-group")
+
       assert html =~ "error" or html =~ "Error" or html =~ "Fehler" or
                html =~ "failed" or html =~ "fehlgeschlagen" or
                html =~ "Validation failed" or html =~ "Validierung fehlgeschlagen" or
@@ -108,6 +110,7 @@ defmodule MvWeb.MemberLive.FormErrorHandlingTest do
 
       # Should show flash error message
       assert has_element?(view, "#flash-group")
+
       assert html =~ "error" or html =~ "Error" or html =~ "Fehler" or
                html =~ "failed" or html =~ "fehlgeschlagen" or
                html =~ "Validation failed" or html =~ "Validierung fehlgeschlagen"