Ableton Forum

Hello, I'm running ableton on a Macbook Pro. I am working in session view. I have two tracks, each with two clips (so a total of two scenes.) My track on the right side is able to play each clip without a problem. My track on the left side is able to play each clip BUT I am unable to hear the audio. I fiddled around with options/buttons etc. and I can't seem to find a way to make my audio come back. I'm using the "Lead-5ths" Instrument, which is a standard sound that came with ableton and is not from a third party. When I made the sound, it definitely worked but when I added the other track in the sound from the original decided to stop working.

Hopefully that made sense, any Ideas? I really appreciate the help.