[Edward Phillips]

I know this is an older thread but in case any still has this issue. I could play audio fro the timeline, play backwards in viewer but not forward like the OP. I went to my sequence settings, clicked Audio Output Tab, and did nothing but hit okay. A warning came up saying the current audio device does not support the # of outputs. I clicked “Downmix all outputs to Stereo” and clicked okay. Everything works fine now.