Ensure you are downloading the "new" or updated version of the Mix Lab 31 skin. Older versions of custom skins may not support newer Virtual DJ features, such as advanced stems separation or the updated video engine. How to Install the Skin in Virtual DJ
: Open VirtualDJ. Look for the CONFIG button (often in the top right corner of the default skin). Click on the Skins tab. Your newly installed skin should appear in the list. Simply click on it to select it and hit OK or Apply. virtual dj mix lab 31 skin download new