troubleshooting
PoseHeadingDegrees is missing
Camera compass needs to be callibrated. See article:
GPS Data/Image Pano Heading - Missing PoseHeadingDegrees - RICOH THETA X
PosePitchDegrees and PoseRollDegrees always zero
To get the PosePitch and PoseRoll, the camera topBottomCorrection needs to be disabled.
With the newer THETA X firmware, topBottomCorrection can be enabled and disabled from the body of the camera.
For API use see this article:
RICOH THETA Disable Auto-Level topBottomCorrection for Interval Shooting