No humidity and no IMU sensor reported

[Arruba]

I have a MPU-9255 and a BME280 connected to I2C and in the I2C tab I can see the humidity sensor. 
The MPU is not present in Compass tab (Detected IMU: empty).
Openplotter in debug mode tell me 
No IMU detected
No humidity sensor detected

There is a way (another program or action via terminal) I can test my sensors?
Or it is a know software fault?

Thank you
Roberto

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Openplotter 0.16.0 beta
Raspberry PI 3
Connected devices:
Keyboard, mouse, Eth, USB GPS, monitor