From Manchester City Council burial records, I found out years ago that my g.grandfather was buried in F Consecrated 1420 grave on 11 January 1892 (later followed by his wife and one of his sons and daughter in law). However, I've received an email today from Ancestry which states that from England and Scotland Select Cemetery Records 1800-2016, he is apparently buried in grave F612. I'm assuming it's the same person, I doubt there would be two Seth Hobsons, both butchers, both buried in the same cemetery on the same day. I'm inclined to go with the Manchester City Council burial records as the Ancestry one doesn't have an image of their record.
Just looked at the actual register and I can see what has happened, the person below my g.grandfather was buried in L612!!! The register is so legible, it can't be because they can't read it. I'll contact Ancestry but I doubt they'll change anything.