Hello Nicols,
thank you very much for advise. I tried it again, many times, but it doesn't work as you described. Please, check in this video:
www.loom.com/share/eff3851733d04c2cadd5d9a64bf31611
In function you are talking about, there is section commented with //DISPLAY FIELDS
I removed comma and space here:
$html.='> <a class="hikashop_filter_list_selected" style="font-weight:bold">'.JText::_($val[1]).'</a>, '; and few lines under here
$html.='> <a class="hikashop_filter_list_selected" style="font-weight:bold">'.$value.'</a>, ';
It looks that the comma is somehow tied with functionality to me. If you need to check, I sent you my backend and FTP access a few days ago.
Please, let me know what I can do with it.
Thank you very much for your help,
Filip