Why does the gallery disappear in a custom pop-up on Tilde?

Question

css

A pop-up was made in zeroblock, there is a slider gallery in the block. When linking the code, the gallery disappears.

Code

var ZeroPopID = '#rec334476814'; //ID Zero
var PopWindID = '#rec334476880'; //PopUp window ID BF503
$(PopWindID + " .t-popup__container").addClass("shirina").html($(ZeroPopID));
$(PopWindID + " .t-popup__container").parent(".t-popup").addClass("parpadding")