Quest 3 Seated Calibration Problem? Please help

We've noticed bad reviews coming in because Quest 3 users aren't auto calibrated in our game, which uses a seated position. It works just fine on a Quest 1 and 2.

Has anything changed on the Quest 3 regarding calibration that we're not aware of?

Any help would be appreciated. We can't get our hands on a Quest 3 to test against unfortunately.

Thank you!