Good day! After update from 3.4 to 3.6.10 I got issue - manual ordering of products in category doesnt work properly. I set ordering numbers for some products and press button Save order, nothing is being saving, all fields get filled with zeros. Оrdering with arrows works good. I found out issue is in \administrator\components\com_virtuemart\models\product.php in line 2095,
I have * @version $Id: product.php 10205 2019-11-18 11:26:57Z Milbo $
function saveorder ($cid = array(), $order, $filter = NULL) {
function was refactored and there is old version of it below named saveorder_old
If i use old version it works properly. Seems, here is some incorrect behavior.
I use ISIS as admin panel template, after switching to Bluestork it works diffrently - ordering numbers which I set are saved but all other fields are still zeros. Maybe it is proper new behavior and problem is in compatibility with ISIS.
There was a lot work in this area. Please try http://dev.virtuemart.net/attachments/1250/com_virtuemart.3.6.11.10302_package_or_extract.zip