Durga or Uma-Parvati

In many serials or puranas  there is a confusion that durga is mother of tridevas and in some serials, myths or puranas it is said she is wife of shiva. In Devi mahamatyam she is said ADISHAKTI, BHUBNESHWARI and DURGA and in shiv puran she is called as UMA and in that puran only UMA SANHITA or UMA KHAND is written in which mahishasur vadh, shumbh nishumbh etc. is written and it is clearly written that all the shaktis got generated from parvati. Is this a big blooper in puranas??