On my AirPods Pro 3, the sound is unbalanced, biasing the left after some time of listening. It happens quite rarely, but enough for me to notice (maybe like one or times a week). Additionally, sometimes when toggling between ANC and transparency, the activation is delayed. You can tell that the left side becomes noise cancelling or transparent faster than the right. For the sound imbalance, it's not because of debris or anything else because a) they're new (month old) and b) if I disconnect and reconnect bluetooth, the sound is balanced again.
This is the second time both of these issues (unbalanced sound and unbalanced ANC/transparency) have happened, as my previous pair I had replaced also had this issue.
The store worker said that if it happens again it may be due to the device I'm using it with which could be true as even though I paired them originally with my iPad Air M3, I use the AirPods 99% of the time on either a Windows laptop (Lenovo) or my Samsung S25 Ultra phone. Does anyone else have this, is this normal (hopefully not) and what should I do?