Recently I built a plane with a matek F405 controller, replacing an H743 that burned out. I noticed in the logs that for some fractions of a second, around every 30 seconds the airspeed drops to 1.6116 for some milliseconds. I never got any airspeed health error in flight, what could be the cause of this? Other i2c devices like the baro show no problems. The drop value is always the same, 1.6116.
Attached pic shows the problem. Using a custom build of Ardupilot 4.5.7.
