CK Slideshow stopped working on some VM categories?

I have checked
- source : virtuemart
- filter one category : yes >> select the category
- load : all

I have compared to the VM products in the category, the 4 products are shown in the slideshow, as expected

Joomla version 3.9.21
Virtuemart version 3.8.4 10335
CK slideshow version 2.1.1

I tested a slideshow from DJ Extensions (DJ MEdia Tools) that can also read from Virtuemart - that works perfectly
You can see it at www.piro.dk

I understand you dont like to work on a Live Site - I would hate that too

Maybe I need do to make a copy of the entire site for you? A different URL and copy af database etc, like you asked for?

Thanks
Finn

ok, the problem is that by my side it works
so I need to check that could be wrong in that case, hope you understand

Maybe I need do to make a copy of the entire site for you?

if you can do that, it would be great

first you can send me an admin access by email
www.joomlack.fr/en/contact

so that I can check the settings