Problem with product ordering

[postkat]

Hi there,

On this website I have a problem with the product ordering.  The order of the products won't stick al least not the same order as set.
For example on https://www.natuurlicht.nl/daglichtlampen/16-mm-tl-buizen.html
The products should be ordered bij wattage but no matter what I try the Viva-Lite 80 watt always jumps to the top while the sort number in the administrator is 16 as You can see in the attachment.
Can someone explain why this is happening and how to solve it?

Note: In the Virtuemart configuration the Default product sort order is set to Ordering.

Joomla 3.9.10 and VirtueMart 3.4.2

Thanks in advance.

Regards, Dorine

[GJC Web Design]

do u display the order by "order" in the config?

what if u type 0 in the order value and click the bizarrely labelled save ( button next to Fabrikanten ) ?