ArduPlane doesn't log barometer

Ground Control Software Mission Planner
1

I am using a Crius AIO Pro, flashed with ArduPlane 2.74b R4 Beta from the MegaPirate NG Flash Tool. The version of Mission Planner is 1.3.24. My problem is that the logs I am downloading from Mission Planner do not include altitude from the barometer. The only altitude data are from the GPS.

The LOG_BITMASK default setting came as 1902 (011101101110). Changing this to 2047 (011111111111) added CTUN and IMU data but still no barometer. The Crius has only 4096 RAM so I could not add more than OPTFLOW which wouldn‘t be any use.

Can anyone advise me how to get the barometric altitude?