I have tried all the possible combinations available. The only one that comes out almost satisfactory is the "Reposition". But when I use that the photos are not blended together perfectly and I am unable to fix them. I have been using photoshop for many years and have never had this issue with panoramas. Is it the material?
I just tried the Panorama with TIF files. Same result. I have used the Repostition method, but as you will notice at the top of the merge you did, the top of the canyon, left to right, is not even/straight. So that gets a fairly good photo, but not as good as I have done in the past.