Ci-joint le fichier.
1. Because the lens has no electrical connection to the camera so lens data is not recorded in the EXIF you need to 'tell' APP/APG that these are fisheye images and that the focal length is 8mm in the Image properties dialogue, and check and set the crop circle to fullframe - screenshot 1.
2. Set the Default crop to Maximum projection range - screenshot 2.
3. Then all should go well - run Detect; then use the Vanishing point and Yaw,Pitch,Roll tools in the Panorama editor to re-oirientate the pano as described in my earlier post; then Render - screenshot 3 is my stitch with no further editing or manual intervention.
4. I think you should be able to use just 6 shots around rather than 12.