diff --git a/lib/modules/billing/schemas/invoice.ex b/lib/modules/billing/schemas/invoice.ex
index 12c6a5ca..f512a228 100644
--- a/lib/modules/billing/schemas/invoice.ex
+++ b/lib/modules/billing/schemas/invoice.ex
@@ -161,9 +161,9 @@ defmodule PhoenixKit.Modules.Billing.Invoice do
       |> validate_status_transition(invoice.status, new_status)
 
     case new_status do
-      "sent" -> put_change(changeset, :sent_at, DateTime.utc_now())
-      "paid" -> put_change(changeset, :paid_at, DateTime.utc_now())
-      "void" -> put_change(changeset, :voided_at, DateTime.utc_now())
+      "sent" -> put_change(changeset, :sent_at, DateTime.truncate(DateTime.utc_now(), :second))
+      "paid" -> put_change(changeset, :paid_at, DateTime.truncate(DateTime.utc_now(), :second))
+      "void" -> put_change(changeset, :voided_at, DateTime.truncate(DateTime.utc_now(), :second))
       _ -> changeset
     end
   end
diff --git a/lib/modules/billing/schemas/order.ex b/lib/modules/billing/schemas/order.ex
index 1a6681bd..55f267e7 100644
--- a/lib/modules/billing/schemas/order.ex
+++ b/lib/modules/billing/schemas/order.ex
@@ -214,10 +214,17 @@ defmodule PhoenixKit.Modules.Billing.Order do
       |> validate_status_transition(order.status, new_status)
 
     case new_status do
-      "confirmed" -> put_change(changeset, :confirmed_at, DateTime.utc_now())
-      "paid" -> put_change(changeset, :paid_at, DateTime.utc_now())
-      "cancelled" -> put_change(changeset, :cancelled_at, DateTime.utc_now())
-      _ -> changeset
+      "confirmed" ->
+        put_change(changeset, :confirmed_at, DateTime.truncate(DateTime.utc_now(), :second))
+
+      "paid" ->
+        put_change(changeset, :paid_at, DateTime.truncate(DateTime.utc_now(), :second))
+
+      "cancelled" ->
+        put_change(changeset, :cancelled_at, DateTime.truncate(DateTime.utc_now(), :second))
+
+      _ ->
+        changeset
     end
   end
 
diff --git a/lib/modules/comments/comments.ex b/lib/modules/comments/comments.ex
index 28fc1ae9..ac58b962 100644
--- a/lib/modules/comments/comments.ex
+++ b/lib/modules/comments/comments.ex
@@ -304,7 +304,9 @@ defmodule PhoenixKit.Modules.Comments do
   def bulk_update_status(comment_ids, status)
       when is_list(comment_ids) and status in ["published", "hidden", "deleted", "pending"] do
     from(c in Comment, where: c.uuid in ^comment_ids)
-    |> repo().update_all(set: [status: status, updated_at: DateTime.utc_now()])
+    |> repo().update_all(
+      set: [status: status, updated_at: DateTime.truncate(DateTime.utc_now(), :second)]
+    )
   end
 
   @doc """
diff --git a/lib/modules/emails/event.ex b/lib/modules/emails/event.ex
index daa33782..79e0e6ad 100644
--- a/lib/modules/emails/event.ex
+++ b/lib/modules/emails/event.ex
@@ -759,7 +759,7 @@ defmodule PhoenixKit.Modules.Emails.Event do
   # Set occurred_at if not provided
   defp maybe_set_occurred_at(changeset) do
     case get_field(changeset, :occurred_at) do
-      nil -> put_change(changeset, :occurred_at, DateTime.utc_now())
+      nil -> put_change(changeset, :occurred_at, DateTime.truncate(DateTime.utc_now(), :second))
       _ -> changeset
     end
   end
diff --git a/lib/modules/emails/log.ex b/lib/modules/emails/log.ex
index 7bca0ef1..1c934ddf 100644
--- a/lib/modules/emails/log.ex
+++ b/lib/modules/emails/log.ex
@@ -1217,7 +1217,7 @@ defmodule PhoenixKit.Modules.Emails.Log do
   # Set queued_at if not provided
   defp maybe_set_queued_at(changeset) do
     case get_field(changeset, :queued_at) do
-      nil -> put_change(changeset, :queued_at, DateTime.utc_now())
+      nil -> put_change(changeset, :queued_at, DateTime.truncate(DateTime.utc_now(), :second))
       _ -> changeset
     end
   end
diff --git a/lib/modules/emails/templates.ex b/lib/modules/emails/templates.ex
index 9431d6d6..c61ae8a4 100644
--- a/lib/modules/emails/templates.ex
+++ b/lib/modules/emails/templates.ex
@@ -480,7 +480,7 @@ defmodule PhoenixKit.Modules.Emails.Templates do
     template
     |> Template.usage_changeset(%{
       usage_count: template.usage_count + 1,
-      last_used_at: DateTime.utc_now()
+      last_used_at: DateTime.truncate(DateTime.utc_now(), :second)
     })
     |> repo().update()
   end
diff --git a/lib/modules/referrals/referrals.ex b/lib/modules/referrals/referrals.ex
index 8c7d6413..8e826ab1 100644
--- a/lib/modules/referrals/referrals.ex
+++ b/lib/modules/referrals/referrals.ex
@@ -757,7 +757,7 @@ defmodule PhoenixKit.Modules.Referrals do
 
   defp maybe_set_date_created(changeset) do
     if changeset.data.__meta__.state == :built do
-      put_change(changeset, :date_created, DateTime.utc_now())
+      put_change(changeset, :date_created, DateTime.truncate(DateTime.utc_now(), :second))
     else
       changeset
     end
diff --git a/lib/modules/referrals/schemas/referral_code_usage.ex b/lib/modules/referrals/schemas/referral_code_usage.ex
index 822ee424..db88e75e 100644
--- a/lib/modules/referrals/schemas/referral_code_usage.ex
+++ b/lib/modules/referrals/schemas/referral_code_usage.ex
@@ -217,7 +217,7 @@ defmodule PhoenixKit.Modules.Referrals.ReferralCodeUsage do
   # Private helper to set date_used on new records
   defp maybe_set_date_used(changeset) do
     if changeset.data.__meta__.state == :built do
-      put_change(changeset, :date_used, DateTime.utc_now())
+      put_change(changeset, :date_used, DateTime.truncate(DateTime.utc_now(), :second))
     else
       changeset
     end
diff --git a/lib/modules/shop/shop.ex b/lib/modules/shop/shop.ex
index d00543cf..ed1a4076 100644
--- a/lib/modules/shop/shop.ex
+++ b/lib/modules/shop/shop.ex
@@ -539,7 +539,9 @@ defmodule PhoenixKit.Modules.Shop do
 
     {count, _} =
       query
-      |> repo().update_all(set: [status: status, updated_at: DateTime.utc_now()])
+      |> repo().update_all(
+        set: [status: status, updated_at: DateTime.truncate(DateTime.utc_now(), :second)]
+      )
 
     if count > 0 do
       Events.broadcast_products_bulk_status_changed(ids, status)
@@ -963,7 +965,9 @@ defmodule PhoenixKit.Modules.Shop do
 
     {count, _} =
       query
-      |> repo().update_all(set: [status: status, updated_at: DateTime.utc_now()])
+      |> repo().update_all(
+        set: [status: status, updated_at: DateTime.truncate(DateTime.utc_now(), :second)]
+      )
 
     if count > 0 do
       Events.broadcast_categories_bulk_status_changed(ids, status)
@@ -2385,7 +2389,9 @@ defmodule PhoenixKit.Modules.Shop do
     {count, _} =
       Cart
       |> where([c], c.id == ^cart_id and c.status == "active")
-      |> repo().update_all(set: [status: "converting", updated_at: DateTime.utc_now()])
+      |> repo().update_all(
+        set: [status: "converting", updated_at: DateTime.truncate(DateTime.utc_now(), :second)]
+      )
 
     if count == 1 do
       # Successfully locked - reload cart with new status
diff --git a/lib/modules/tickets/tickets.ex b/lib/modules/tickets/tickets.ex
index f3cd2ac1..9b26076a 100644
--- a/lib/modules/tickets/tickets.ex
+++ b/lib/modules/tickets/tickets.ex
@@ -586,10 +586,17 @@ defmodule PhoenixKit.Modules.Tickets do
         # Set timestamps based on new status
         attrs =
           case new_status do
-            "resolved" -> Map.put(attrs, :resolved_at, DateTime.utc_now())
-            "closed" -> Map.put(attrs, :closed_at, DateTime.utc_now())
-            "open" -> Map.merge(attrs, %{resolved_at: nil, closed_at: nil})
-            _ -> attrs
+            "resolved" ->
+              Map.put(attrs, :resolved_at, DateTime.truncate(DateTime.utc_now(), :second))
+
+            "closed" ->
+              Map.put(attrs, :closed_at, DateTime.truncate(DateTime.utc_now(), :second))
+
+            "open" ->
+              Map.merge(attrs, %{resolved_at: nil, closed_at: nil})
+
+            _ ->
+              attrs
           end
 
         # Use raw update to avoid double broadcast from update_ticket
diff --git a/lib/phoenix_kit/dashboard/registry.ex b/lib/phoenix_kit/dashboard/registry.ex
index 90756f89..ec6927b2 100644
--- a/lib/phoenix_kit/dashboard/registry.ex
+++ b/lib/phoenix_kit/dashboard/registry.ex
@@ -540,7 +540,13 @@ defmodule PhoenixKit.Dashboard.Registry do
 
   @impl true
   def handle_call({:register_groups, groups}, _from, state) do
-    :ets.insert(@ets_table, {:groups, groups})
+    converted =
+      Enum.map(groups, fn
+        %Group{} = g -> g
+        map when is_map(map) -> Group.new(map)
+      end)
+
+    :ets.insert(@ets_table, {:groups, converted})
     broadcast_refresh()
     {:reply, :ok, state}
   end
diff --git a/lib/phoenix_kit/scheduled_jobs.ex b/lib/phoenix_kit/scheduled_jobs.ex
index f82d4cfa..84668327 100644
--- a/lib/phoenix_kit/scheduled_jobs.ex
+++ b/lib/phoenix_kit/scheduled_jobs.ex
@@ -130,7 +130,9 @@ defmodule PhoenixKit.ScheduledJobs do
       where: j.resource_id == ^resource_id,
       where: j.status == "pending"
     )
-    |> repo().update_all(set: [status: "cancelled", updated_at: DateTime.utc_now()])
+    |> repo().update_all(
+      set: [status: "cancelled", updated_at: DateTime.truncate(DateTime.utc_now(), :second)]
+    )
   end
 
   @doc """
diff --git a/lib/phoenix_kit/scheduled_jobs/scheduled_job.ex b/lib/phoenix_kit/scheduled_jobs/scheduled_job.ex
index ef6e77ff..4ff6a957 100644
--- a/lib/phoenix_kit/scheduled_jobs/scheduled_job.ex
+++ b/lib/phoenix_kit/scheduled_jobs/scheduled_job.ex
@@ -84,7 +84,7 @@ defmodule PhoenixKit.ScheduledJobs.ScheduledJob do
     scheduled_job
     |> change(%{
       status: "executed",
-      executed_at: DateTime.utc_now()
+      executed_at: DateTime.truncate(DateTime.utc_now(), :second)
     })
   end
 
diff --git a/lib/phoenix_kit/settings/setting.ex b/lib/phoenix_kit/settings/setting.ex
index f9f69d3c..f79fcf2d 100644
--- a/lib/phoenix_kit/settings/setting.ex
+++ b/lib/phoenix_kit/settings/setting.ex
@@ -122,21 +122,21 @@ defmodule PhoenixKit.Settings.Setting do
     |> validate_setting_value()
     |> validate_value_exclusivity()
     |> validate_length(:module, max: 255)
-    |> put_change(:date_updated, DateTime.utc_now())
+    |> put_change(:date_updated, DateTime.truncate(DateTime.utc_now(), :second))
   end
 
   # Private helper to set timestamps on new records
   defp maybe_set_timestamps(changeset) do
     case changeset.data.uuid do
       nil ->
-        now = DateTime.utc_now()
+        now = DateTime.truncate(DateTime.utc_now(), :second)
 
         changeset
         |> put_change(:date_added, now)
         |> put_change(:date_updated, now)
 
       _uuid ->
-        put_change(changeset, :date_updated, DateTime.utc_now())
+        put_change(changeset, :date_updated, DateTime.truncate(DateTime.utc_now(), :second))
     end
   end
 
diff --git a/lib/phoenix_kit/users/auth.ex b/lib/phoenix_kit/users/auth.ex
index d1e9b940..4c2cf23d 100644
--- a/lib/phoenix_kit/users/auth.ex
+++ b/lib/phoenix_kit/users/auth.ex
@@ -295,6 +295,16 @@ defmodule PhoenixKit.Users.Auth do
     |> Repo.all()
   end
 
+  @doc """
+  Gets multiple users by their UUIDs.
+  """
+  def get_users_by_uuids([]), do: []
+
+  def get_users_by_uuids(uuids) when is_list(uuids) do
+    from(u in User, where: u.uuid in ^uuids)
+    |> Repo.all()
+  end
+
   @doc """
   Gets the first admin user (Owner or Admin role).
 
@@ -2447,7 +2457,11 @@ defmodule PhoenixKit.Users.Auth do
 
       from(o in module, where: ^dynamic_query)
       |> Repo.repo().update_all(
-        set: [user_id: nil, user_uuid: nil, anonymized_at: DateTime.utc_now()]
+        set: [
+          user_id: nil,
+          user_uuid: nil,
+          anonymized_at: DateTime.truncate(DateTime.utc_now(), :second)
+        ]
       )
       |> elem(0)
     else
@@ -2470,7 +2484,7 @@ defmodule PhoenixKit.Users.Auth do
           user_id: nil,
           user_uuid: nil,
           author_deleted: true,
-          anonymized_at: DateTime.utc_now()
+          anonymized_at: DateTime.truncate(DateTime.utc_now(), :second)
         ]
       )
       |> elem(0)
@@ -2504,7 +2518,7 @@ defmodule PhoenixKit.Users.Auth do
           user_id: nil,
           user_uuid: nil,
           author_deleted: true,
-          anonymized_at: DateTime.utc_now()
+          anonymized_at: DateTime.truncate(DateTime.utc_now(), :second)
         ]
       )
       |> elem(0)
@@ -2543,7 +2557,7 @@ defmodule PhoenixKit.Users.Auth do
         set: [
           user_id: nil,
           user_uuid: nil,
-          anonymized_at: DateTime.utc_now(),
+          anonymized_at: DateTime.truncate(DateTime.utc_now(), :second),
           original_user_email: nil
         ]
       )
@@ -2568,7 +2582,7 @@ defmodule PhoenixKit.Users.Auth do
         set: [
           user_id: nil,
           user_uuid: nil,
-          anonymized_at: DateTime.utc_now()
+          anonymized_at: DateTime.truncate(DateTime.utc_now(), :second)
         ]
       )
       |> elem(0)
@@ -2591,7 +2605,7 @@ defmodule PhoenixKit.Users.Auth do
         set: [
           user_id: nil,
           user_uuid: nil,
-          anonymized_at: DateTime.utc_now()
+          anonymized_at: DateTime.truncate(DateTime.utc_now(), :second)
         ]
       )
       |> elem(0)
diff --git a/lib/phoenix_kit/users/auth/user.ex b/lib/phoenix_kit/users/auth/user.ex
index 9bbb2714..ca214cc7 100644
--- a/lib/phoenix_kit/users/auth/user.ex
+++ b/lib/phoenix_kit/users/auth/user.ex
@@ -319,7 +319,7 @@ defmodule PhoenixKit.Users.Auth.User do
   Confirms the account by setting `confirmed_at`.
   """
   def confirm_changeset(user) do
-    now = DateTime.utc_now()
+    now = DateTime.truncate(DateTime.utc_now(), :second)
     change(user, confirmed_at: now)
   end
 
diff --git a/lib/phoenix_kit/users/magic_link_registration.ex b/lib/phoenix_kit/users/magic_link_registration.ex
index 5c697d17..69a28b06 100644
--- a/lib/phoenix_kit/users/magic_link_registration.ex
+++ b/lib/phoenix_kit/users/magic_link_registration.ex
@@ -163,7 +163,7 @@ defmodule PhoenixKit.Users.MagicLinkRegistration do
     attrs =
       attrs
       |> Map.put("email", email)
-      |> Map.put("confirmed_at", DateTime.utc_now())
+      |> Map.put("confirmed_at", DateTime.truncate(DateTime.utc_now(), :second))
 
     track_geolocation = Settings.get_boolean_setting("track_registration_geolocation", false)
 
diff --git a/lib/phoenix_kit/users/permissions.ex b/lib/phoenix_kit/users/permissions.ex
index e0d0e627..759aa1c4 100644
--- a/lib/phoenix_kit/users/permissions.ex
+++ b/lib/phoenix_kit/users/permissions.ex
@@ -735,7 +735,7 @@ defmodule PhoenixKit.Users.Permissions do
 
       # Bulk insert new permissions
       if MapSet.size(to_add) > 0 do
-        now = DateTime.utc_now()
+        now = DateTime.truncate(DateTime.utc_now(), :second)
         granted_by_int = resolve_user_id(granted_by_id)
         granted_by_uuid = resolve_user_uuid(granted_by_id)
 
diff --git a/lib/phoenix_kit/users/role_assignment.ex b/lib/phoenix_kit/users/role_assignment.ex
index 3ba07e9d..0fd2978f 100644
--- a/lib/phoenix_kit/users/role_assignment.ex
+++ b/lib/phoenix_kit/users/role_assignment.ex
@@ -99,7 +99,7 @@ defmodule PhoenixKit.Users.RoleAssignment do
         put_change(
           changeset,
           :assigned_at,
-          DateTime.utc_now()
+          DateTime.truncate(DateTime.utc_now(), :second)
         )
 
       _ ->
diff --git a/lib/phoenix_kit/users/roles.ex b/lib/phoenix_kit/users/roles.ex
index 3953cce4..a56f3a4d 100644
--- a/lib/phoenix_kit/users/roles.ex
+++ b/lib/phoenix_kit/users/roles.ex
@@ -799,7 +799,7 @@ defmodule PhoenixKit.Users.Roles do
 
   # Add confirmed_at timestamp if user email is not confirmed
   defp maybe_add_confirmed_at(changes, nil) do
-    Map.put(changes, :confirmed_at, DateTime.utc_now())
+    Map.put(changes, :confirmed_at, DateTime.truncate(DateTime.utc_now(), :second))
   end
 
   defp maybe_add_confirmed_at(changes, _confirmed_at), do: changes
diff --git a/lib/phoenix_kit_web/live/users/live_sessions.ex b/lib/phoenix_kit_web/live/users/live_sessions.ex
index 2f207fc8..26ddef85 100644
--- a/lib/phoenix_kit_web/live/users/live_sessions.ex
+++ b/lib/phoenix_kit_web/live/users/live_sessions.ex
@@ -226,15 +226,15 @@ defmodule PhoenixKitWeb.Live.Users.LiveSessions do
   end
 
   defp preload_users_for_sessions(sessions) do
-    user_ids =
+    user_uuids =
       sessions
       |> Enum.filter(&(&1.type == :authenticated))
       |> Enum.map(& &1.user_id)
       |> Enum.uniq()
 
-    case user_ids do
+    case user_uuids do
       [] -> %{}
-      ids -> Auth.get_users_by_ids(ids) |> Map.new(&{&1.id, &1})
+      uuids -> Auth.get_users_by_uuids(uuids) |> Map.new(&{&1.uuid, &1})
     end
   end