Hi, guys.
With the px4 verison of 1.12 and mavros, I find that the topic setpoint_attitude does not appear!
Does anyone know how to deal with it?
I have the same problem as you. I guess this is related to the fact that setpoint_attitude topic was used before offboard mode with position setpoints was enabled. Now, setpoint_position/local is used instead of this in offboard mode. This might be the reason.