I still have this issue on my MBP'15 and it drives me nuts (I use a headset daily that uses USB): https://www.reddit.com/r/apple/comments/anvufc/psa_2018_macs_

I still have this issue on my MBP'15 and it drives me nuts (I use a headset daily that uses USB): https://www.reddit.com/r/apple/comments/anvufc/psa_2018_macs_with_t2_chip_unusable_with_external/ https://www.reddit.com/r/apple/comments/anvufc/psa_2018_macs... It's basically not completely reproducible and is random.