This is the first time I am using the Mosaic Wizzard. No difficulty setting up a four tile mosaic with a 30% overlap on M31. I am using my Atik 414EX with a William Optics 0.8 Reducer on a William Optics 102 mm refractor. When I attempt to stitch the four tiles I am only able to stitch tiles 1/2, and 3/4 (the horizontal tile sets). When I attempt to stitch 1/3 or 2/4 the stitching fails. I then reverse Plate Solved my images and discovered that 1/3 and 2/4 had no overlap. I am attaching screen shots of those results. Is it possible for you to give me some advice on what I might be doing wrong? I did check the original RA and DEC of the defined Mosaic. They all had overlap for my setup.
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