Goodmorning,
In JA K2 Filter control panel, I have set a Menu ItemID to report the search results and worked perfectly. I don't know why, after the latest updates of Joomla this option doesn't work anymore and the link result is like this: /component/jak2filter/?Itemid=279&issearch=1&theme=directory&isc=1&xf_18=10, like it can't read that parameter.