I have the same issue. Left earbud suddenly has a super low maximum volume (around 5%). There seems no way to fix this.
Please someone from Nothing look at this! Moderator, can you confirm this is a known bug and if there is any progress?
More details:
I’ve had the problem with multiple devices. Pixel 9, Redmi 13 (MIUI). I have the latest CMF buds firmware.
I tried Bluetooth reconnecting. It doesn’t fix it.
Sometimes the left earbud suddenly works again? Perhaps after recharging to 100%? Or discharging to 0%?