The parameter transmission between the brain and the Mission Planner has became extremly slow. It takes 5 minutes to update the parameter list! And the blinking pattern of the erle brain is kind of irregular, sometimes slow pace and sometimes fast blinking and sometimes even keep red.
The update rate seems to be really slow too. Good new being, the PX4FLOW sensor gives some value back at flow_x_comp, Values change almost only every couple seconds for the PX4FLOW. The imu data in comparison was a bit faster, but still way slower than normal.
I suspect there is some major communication issue. Anyways I am happy to see the flow sensor gives back something this time.