After updating to VM2.0.22a you might end up with some jQuery problems;
Not working Quick View button
Not working Switch View button (to switch between GridView, ListView, MultiGridView)
Not working TABs on the product details page
- Some other issues
The solution is relatively easy.
There are 2 different ways to solve it:
Open these 2 PHP files: /templates/YOUR_TEMPLATE/html/com_virtuemart/assets/includes/flexibleMartGlobal.php /templates/YOUR_TEMPLATE/html/com_virtuemart/productdetails/default.php (or flexv2.php which ever you are currently using for product details page layout)