BPM Changes to wrong value

Whenever I load a track to a deck, the BPM gets changed automatically to a wrong value. For example, I loaded Desire by Sub Focus which has a bpm of 174 but when I loaded it to the deck it all of a sudden got changed to 87 BPM. And then it was permanently changed to this in the library. Even when I quit and reopened dJay pro 2 it still had this value as its bpm. How do I stop it from doing this?