I'm new to APG. In fact I did my first stitch. I was trying to achieve a seamless 360 degree Pano to try a Tiny Planet. Unfortunately, the ends did not meet up properly. I was told there is a setting to have APG make it a clean 360? I had about 16 exposures with a lot of overlap.
The same set of images processed fine on Panomonkey.
I can see how powerful this program is. I'm just lost in some of the settings.
I've taken plenty of handheld 360 panos (albeit only 1 row usually) both portrait and landscape and never had any trouble with any of the APP versions getting the seam to wrap around even though photographing panoramas handheld does increase the amount of correction required for stitching problems generally
As far as the seam is concerned, I just make sure there are plenty of overlapping good quality control points linking the 1st and last exposure (i.e the overlap area for the seam).
In addition, just check the theta value on your final edit before rendering is +180/-180 as in the example below