RTK: orientation problem when iPhone is tilted sideways.

In VPS mode, as long as the iPhone is pointed "forwards", SonarVision indicates that you're heading in the right direction.

In RTK mode, or in the "Test the sound system" simulator, when the iPhone is pointed forwards, but you put it in landscape mode to the right, for example, the right direction is shifted 90° to the left.

So if the iPhone isn't perfectly vertical, you're guided in the wrong direction.