No audio output from existing projects

I own a Nektar Impact LX88, and in the process of installing the drives for the keyboard I messed with some settings on my existing project and no audio is coming out ( MIDI signals are still able to send in so audio output is definitely the problem)

However more interestingly when I create new project everything seems to be fine, audio works and so does everything else… Anyone know whats the problem and possibly the solution?

Update: It does actually work, turns out the UR12 that I have was blinking for a long time and after it has settled down the sound came back, so I guess it is just loading the sounds?

So the question that rises up now is why does it blink/load for so long when I have a project loaded up?