Once we logged in and create query then do another login and create query then we got duplicate query category,,so after create query and do new login then we got the repeats query category in query module in ios
ex.
org id. -> 9961
school  -> Dev Primary School
Login id & pwd : 57 & 57   that time we got only 1 time query category
After another login like : 59 & 59 and then check we got 2 time query category then do another login like : 63 & 63 and then check we got 3 time query category and so on.....