Hi! I posted this in the newbie section a few days ago but I got no replies so I figured maybe this was a better place to ask this. I recently purchased a used Tascam 424 mkII to record some folk music and learn a little about recording and mixing on an analog system. Following the user manual, I am easily able to record audio on both track 1 and 3, however when I try on track 2 or 4 nothing seems to be recording. I still get the sound coming through my headphones but nothing plays on the recording. There seems to be a lot of options when it comes to bussing and panning tracks so is it possible that I'm doing something wrong when it comes to the correct settings for recording on these tracks or is it more likely that both track 2 and 4 are busted? Apologies in advance for my lack of proper recording knowledge. Thanks!