I have a Galaxy S21 Ultra and have got it with the new Galaxy Buds Pro.
While using the earbuds, the noise-canceling option is disabled and when I try to use it I get a notification saying "Put in both earbuds for active noise canceling". Nevertheless, both earbuds are playing sound perfectly and it seems like both are "put it" correctly.
Galaxy Buds Pro - SM-R190 Software Version : R190XXU0AUK1
Galaxy S21 Ultra CM-G998U : Sept 1 2021 system update
Same issue. Does Samsung not respond to the forums?
Restarted my device now and let's see if that makes a difference.