Property may have discoloration??

[Victor Olowu]

I am looking at a property on sale at auction, so this is an 'As is, where is' sale, meaning no entry or real inspection, just a walk around the property.  While re-reading the property description, I noticed the above note: 'Property may have discoloration', and I have no clue what this means.  Has anyone else run into the phrase and it's actual meaning before?  I know when properties are listed with a note like 'slight damage of interior walls' usually means you have to replace every single wall inside the property.  So I am a little worried by that note.