Eliminate the selected choice in repeat loop

I made some edits to the form based on Filter choice with values from the same repeat - #16 by LN. But I couldn't get it to work. I am wondering if it's a bug?

test_form.xlsx (22.3 KB)
task_list_csv.csv (94 Bytes)

In repeat 1, I selected task 1 for both methods (with options on the choices sheet and with options in an external csv file).

In repeat 2, the list from the choices sheet is properly filtered. The list from the external csv is not filtered; however, it does restrict you from selecting the option that should be filtered.