if the play button will not work for deckadance do this!!

I had an issue with deckadance . When I would press play wether it was on my controller or using the mouse the play button would light up but would not start the track . The bpm waves would not even move . So I found there are two different issues that cause this . 1.) You make have auto mix enabled . Or 2.) Make sure you have gone to setting or preferences and select and audio output . Now when they told me to select and audio output I thought why , it's not that I can't hear it , it's just not playing . But apparently if you do not select and audio source the play button will not work . I selected my computer speakers and the play button worked fine after doing so . The deckadance support team was very helpful and with messages back and forth we figured out the issue and I am just sharing with everyone else incase anyone runs into the same issue .