Weave list operation - how to select items from two list

Why my item 2 in Wave list does not come from List 0 index 2 as per Pattern input?
I tried StreamFilter but unable to connect list to Gate… I expect as result same list length as on input so 721 items

Wave_question.gh (37.6 KB)

I think you are looking for Pick’n’Choose, not Weave.