I was using Spatial Analyst to Extract by Attribute. I have a raster that was created using Observer Points. So there is 16 fields in the Raster table. I was extracting for each field equal to 1. So that I have a raster of the cells that is seen by that one observation point. While doing this, I checked my TOC and noticed the seventh one that I extracted had been automatically classified with unique values based on the field values and was not a stretch classification like the rest. (Btw, my Observer Points shapefile is classified with unique values based on another field)... and the 16th one.. But the rest were all stretched.