Hello David,

Thanks for reaching out to us.

To resolve this issues, Please, follow this steps:

Go to this path: JROOT/administrator/components/com_easystore/src/Checkout/OrderManager.php on line nearby 827.

Check this code,

  private function getProducts()
  {
    $products = $this->getOrderItem()->products ?? [];
    if (empty($products)) {
      return $products;
    }
    return array_map(function ($item) {
      $item->weight = $item->weight ?? 0;
      $unit = $item->has_variants 
        ? (isset($item->variant_data->unit) ? $item->variant_data->unit : (isset($item->unit) ? $item->unit : null)) 
        : (isset($item->unit) ? $item->unit : null);
      $item->unit = $unit;
      $item->weight_total = bcmul($item->weight, (int) $item->cart_item->quantity, 2);
      $item->weight_total_with_unit = SettingsHelper::getWeightWithUnit($item->weight_total, $unit);
      $item->weight_with_unit = SettingsHelper::getWeightWithUnit($item->weight, $unit);
      return $item;
    }, $products);
  }

please replace this code with this one,

 private function getProducts()
  {
    $products = $this->getOrderItem()->products ?? [];
    if (empty($products)) {
      return $products;
    }
   return array_map(function ($item) {
    $item->weight = isset($item->weight) && is_numeric($item->weight) ? (string) $item->weight : '0';
    $unit = $item->has_variants 
        ? (isset($item->variant_data->unit) ? $item->variant_data->unit : (isset($item->unit) ? $item->unit : null)) 
        : (isset($item->unit) ? $item->unit : null);

    $item->unit = $unit;
    $item->weight_total = bcmul($item->weight, (string)(int) $item->cart_item->quantity, 2);
    $item->weight_total_with_unit = SettingsHelper::getWeightWithUnit($item->weight_total, $unit);
    $item->weight_with_unit = SettingsHelper::getWeightWithUnit($item->weight, $unit);

    return $item;
}, $products);
  }

Thanks

Does everyone who upgrades have to do this?