It's not something i am planning on doing often but I wanted to try to do a panorama and use Photoshop's "Merge to Panorama" feature to stitch the images. Previously I have only done this manually. I think I have a decent overlap in my images but Photoshop is unable to stitch my images. I have 2 sets of images and it stitches the middle group fine but not the first and the last image. This is similar with my other group of images where it stitches 2 middle groups and not the first and the last image. Below is a screen capture of what i usually get:
What am I doing wrong?