Paste this in your browser's console. (CTRL+SHIFT+i)
Run this to simulate scrolling (wishlist uses progressive loading bullshit):
let lastScroll = -1;
let checkScroll = setInterval(function() {
window.scrollTo(0, document.body.scrollHeight);
if (window.scrollY === lastScroll) {
clearInterval(checkScroll);
console.log("Scrolling complete.");