No sound upon playback after I record, I can hear myself recording

I can hear through my headset with my computer like YouTube and such but once I use audacity it doesn’t play sound. I can hear myself recording but no sound back, I have all my setting set to my motu m2 and on my MacBook all set to m2 and in audacity and I can see the bar moving but no sound. I accidentally did not shut off my automatic upgrade on my MacBook and it worked before the upgrade but I’m still thinking it something simple.