Hi, this is my first time using MixPad. I've imported all the stems of my backing track successfully (drums, bass, piano, three guitar parts) and I'm trying to record a vocal track. I'm using a Rode studio mic plugged into a Go Solo audio interface, into a USB port on my Windows 10 computer. After recording the vocal track, when I play it back, it's playing slightly faster than the other tracks, so that it starts off in time with the backing but then gets further and further ahead. Is there some setting I need to change somewhere?