Seeing partial panos in Stitch where you know you did not shoot them as partials intentionally, is a sign that the USB drive is malfunctioning. You should replace it ASAP. We have been getting user reports that metal Kingston USB 3.0 drives are especially prone to this, so if you are using one, it is probably a good idea to replace it just in case. We currently use Sandisk Ultra Flair USB 3.0 flash drives.  

For partial panos image data, inspect h.jpg images - at least one of them most likely will be corrupt or missing. Corrupt images will have corrupt JPEG encoding and missing or corrupt image data. Here are few tips for dealing with corrupt panos.
  • Corrupt encoding may be fixed by simply opening the h.jpg image in Photoshop and re-saving it. 
  • For missing data, you can try using a corresponding s.jpg image which is a downsampled copy of h.jpg. You will need to scale it up in Photoshop to be the same size as h.jpg in pixels and then copy over the missing parts. Those parts will be softer and will lack sharpness compared to the rest of the original h.jpg, so you may want to disable that pano in the iGUIDE.
  • Sometimes h.jpg will have nearly complete image data, but parts of the image will be shifted around. You can re-arrange them into the correct order in Photoshop and re-save the file.
  • After fixing h.jpg files, right-click on the pano in the tree-view in Stitch (left side of Stitch window) and choose Re-lmport.
  • Partial panos can still be used by the drafting team, as they will have laser data.