Unable to find the option to turn ON/OFF the Palm Rejection feature of the Adonit stylus.
This is NOT a bug. With the latest Adonit SDK, they have made it mandatory to use their palm rejection (and their pressure sensitivity comes along with it ) and it can note be turned off in order to use the app's native palm rejection feature instead.
If you think this option is necessary, you can request the Adonit guys to provide this back in their UI in their next SDK update.
There may be good reasons why Adonit has taken this route and we are following up with them on this to understand their future direction on this aspect.