DDJ 400 headphone volume goes out mid song

It is almost as if the volume/sound on the preview/cue through the headphones are clipping. I will go through a few songs and the volume will be amazing. I won't even have to have it all the way up. The nob will be in the middle and it will be pretty loud. Then suddenly the volume drops 😵😵😵 sometimes if i restart rekordbox it goes back up but not always and very inconvenient during a live set. 😭😭😭😭