Hi,
I think it could come from your SEF component or maybe your language component.
When HikaMarket submit the page, it submit a form with some data. The answer of this POST is a "301" which redirect the user to the home page.
It is not something that HikaMarket do, so I think that you have a system plugin which do that.
It is generally link to SEF, language or security.
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.