This is a really bizzare problem I cannot figure out.

So I have a Focusrite 2i2 plugged into logic. Works great no complaints usually. Today I cannot get NEW inputs to work? What I mean is if I open a song with tracks already recorded, I can click on them and play and I can hear the output monitored in headphones. If I add a new track that one will not play through output. However it picks up and records just without monitoring. Creating a whole new song same problem, old songs, same problem. I've reset my computer unplug the focusrite. My auto input and software monitoring are both checked also, again monitoring works right on previously created tracks. The only thing that's different is this week I got a DJ Controller and I was using that on Serato for the last couple days and now going back to logic for the first time in a few days and this is happening. Any help would be sick