Before the next batch import, please try the change below?
Inside the very last foreach in file:
InputSerialItemsFile.php, change the first parameter to locale_number_format():
...from this:
PHP Code:
echo '<tr>
<td>' . $SItem->BundleRef . '</td>
<td class="number">' . locale_number_format($Bundle->BundleQty, $LineItem->DecimalPlaces) . '</td>
</tr>';
...to this:
PHP Code:
echo '<tr>
<td>' . $SItem->BundleRef . '</td>
<td class="number">' . locale_number_format($SItem->BundleQty, $LineItem->DecimalPlaces) . '</td>
</tr>';