Given that you have a tibble with a nested listed column, there is a "spy glass" next to the values in the nested column that will open that value in a new viewer pane. When the top level tibble is sorted by row-number (ie as opened), this spy glass works as intended. However, when the data viewer GUI is used to sort the tibble on some other column, the spy glass will open the nested cell from the incorrect row.
I'm guessing that the call is using the row number indexing as viewed in the custom sort in one place, and the actual original row number in another place?