Hi Goran,
That sounds like the “Page reload” didn’t filter anything but just worked like a refresh.
Suppose the filter plugin should filter the query result, so the looping Popup with dynamic data should reflect the latest filtered content, right?
Actually the explanation is just like what I did here NO BUG: Query loop, Popup, JetSmartFilters problem - #14 by itchycode
I am very sorry that I can’t provide any solution for this from Bricks. 
By the way, the Offset parameter already exists in our Query loop UI.
Regards,
Jenn