Works for me too, so please check the setting, maybe rebooting the phone would be a good idea too.
Does the "pull to select" panel slide out at all (from the top of the message list)?
I did make a small change to "pull to..." logic, where it's less easy to trigger accidentally by a very fast and brief swipe (it could trigger before the panel had the time to slide out == before the user could understand what was happening).