Yes, I was using the standard lens calibration, and it seemed to skip the lens calibration step and move immediately to bracket calibration.
I did incorrectly select the wide angle calibration option the first time, and got as far as the second checkerboard step before realizing i had selected wide lens option. the dialog to switch to standard lens calibration would not dismiss, so i restarted the app.
Since the app crashed using the outdoor calibration, i succeeded in indoor calibration up to the point of refinement, but the black screen kept me from performing that step.
Now, whenever I launch the calibrator app, even after rebooting my ipad and re-installing the calibrator app, the app crashes on launch right after showing the screen where i could select "RECALIBRATE".