SQL & PL/SQL :: Distinct With Orderby In Subquery

The table creation and Data insertion script is attached with the message.Basically I want to sort all the data based on the order by clause and then remove duplicates from the TSKID column and get distinct TSKIDs in the same order.I have below query to sort data:

SELECT *
FROM piwingetworkitems_vd
ORDER BY profilepriority,
authdptpriority,
returnpriority ASC,
priority DESC,
effdate,
tskid

But when I add a DISTINCT to the query, it does some kind of random sort and doesn't return the data as per above ORDER BY query and ignoring the SORT order.

SELECT DISTINCT tskid
FROM (SELECT *
FROM piwingetworkitems_vd
ORDER BY profilepriority,
authdptpriority,
returnpriority ASC,
priority DESC,
effdate,
tskid)

Is there any way to select the DISTINCT taskids ordered as per requirements?