app/Filament/Resources/PanelBoxValidationResource/Pages/CreatePanelBoxValidation.php

@@ -98,6 +98,7 @@ class CreatePanelBoxValidation extends CreateRecord {
         $this->existingRecords = ProductCharacteristicsMaster::where('plant_id', $plantId)
             ->where('category', $categoryName)
             ->where('line_id', $lineId)
+            ->orderBy('id', 'asc')
             ->get();
 
         return $this->existingRecords->isNotEmpty();