Hi,
I watched your video and impressed your effort.
The category filtering is working alright, (i just tested in our DEMO). Browse the DEMO
(
www.flexiblewebdesign.com/virtuemart-2-template-fashionmart/index.php?option=com_content&view=article&id=71&Itemid=489)
and see the "Theme: STICK v2", there is only 1 product in it initially.(but things get messed up if the LEFT arrow is clicked)
Please make sure the products don't have multiple categories. For this purpose, create a TESTING category and add only 1 or 2 products in it, then choose that TESTING category from the module parameter, and you will see only those 2 products that fall under TESTING category in the module.
About the LEFT arrow issue, YES, you are right, the RIGHT arrow works okay when there are multiple modules, but clicking the LEFT arrow slides all the modules. I just noticed that it is also exist in our DEMO
The LEFT arrow gives the scrolling command to all existing modules, which mess up everything. But i should run some tests in our DEMO to make sure everything is working alright before providing you the patch.
Regards.
Forum Support.