This happened to me twice during a set. I use a DDJ SZ and I often use the knobs at the top of the decks along with the FX setup in the FX tab in SERATO DJ, i use Echos, Echos Out and phaser. I also use the knobs that are above the crossfader. When I use the knobs that are above the deck (the ones that the FX has to be set up in serato DJ) Serato DJ will freeze for 30 seconds, then it ll start back again, but there wont be any sound coming out. I have to reset Serato DJ. Sometimes, the music coming out of serato DJ will be "glitchy" and distorted after it stopped, even if i restarted serato dj. I am not running any other programs at the same time.

I have had the same issue with the previous version of Serato DJ (1.9.1) and I am running on a Macbook Pro Mid 2009 , 2.26 GHz Intel Core 2 Duo, 4 GB 1067 MHz DDR3

Any ideas? Is it the firmware that i would have to update or could be the memory on my macbook that needs an upgrade (or the macbook itself)?