Hi,
ACL are only for customer.
A vendor will be able to see all of his products even if the product have an ACL that the current vendor user do not have.
And a vendor will be able to see the different categories as well.
Because these filters are made for the customers (by HikaShop), not for the Vendors (by HikaMarket).
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.