diff --git a/order_line_sequences/models/stock.py b/order_line_sequences/models/stock.py
index 242ed2390..0982c7eae 100644
--- a/order_line_sequences/models/stock.py
+++ b/order_line_sequences/models/stock.py
@@ -31,17 +31,20 @@ class StockMove(models.Model):
                                      compute='_compute_sequence_number',
                                      help='Line Numbers',default=False)
 
-    @api.depends('picking_id')
+    @api.depends('picking_id', 'picking_id.move_ids_without_package')
     def _compute_sequence_number(self):
         """Function to compute line numbers"""
+        # First set default value for all records
+        for move in self:
+            move.sequence_number = 0
+
+        # Then process moves that should have sequence numbers
         for picking in self.mapped('picking_id'):
             sequence_number = 1
-            if picking.move_ids_without_package:
-                for lines in picking.move_ids_without_package:
-                    lines.sequence_number = sequence_number
+            for move in picking.move_ids_without_package:
+                if move in self:  # Only update moves in our original recordset
+                    move.sequence_number = sequence_number
                     sequence_number += 1
-            else:
-                self.sequence_number = ''
 
 
 class StockPicking(models.Model):
diff --git a/order_line_sequences/views/stock_picking_views.xml b/order_line_sequences/views/stock_picking_views.xml
index a1ac12893..4c065170c 100644
--- a/order_line_sequences/views/stock_picking_views.xml
+++ b/order_line_sequences/views/stock_picking_views.xml
@@ -9,7 +9,7 @@
         <field name="inherit_id" ref="stock.view_picking_form"/>
         <field name="arch" type="xml">
             <xpath expr="//field[@name='move_ids_without_package']//list//field[@name='product_id']"
-                   position="before">
+                   position="before">z
                 <field name="sequence_number"/>
             </xpath>
         </field>