Hi Lance,
Thank you for your feedback.
Can you tell me if you are using Android or iOS version of Pix4Dcapture?
This issue you are experiencing has already been encountered by other users and was reported in this post.
From previous logs investigation, it seems that the issue originates from DJI SDK or drone firmware.
Would it be possible for you to send the logs of the flight you did having this undesired angle? For an efficient investigation, it is important to notify the date and the hour of the flight, and the mission name if possible.
In the meantime, as reported by another user, the bug seems to do not occur on the Android version of Pix4Dcapture, I would suggest you to use Android version of Pix4Dcapture with your configuration if you are experiencing difficulties on iOS.
best,