Euler angles give a random -0.065 value

I have two imu's connected to the same i2c bus. One of them gives a random -0.065 for the pitch reading when the other is connected but works perfectly fine once the other is removed. Lowering the clock speed to 5kHz seems to decrease how often I get the random values when both are connected.

Start with the BNO055 driver's I2C and Euler-angle handling, then reproduce the reported pitch value with two IMUs on the same bus. Compare behavior at the normal clock speed and 5 kHz, and determine whether the issue is in the driver or bus interaction. Done means the cause is confirmed and the erroneous -0.065 reading is addressed or clearly documented.

Written by the indexing model from the issue text.