Citation Manager isn't properly extracting the {year} info from the BibTex file exported from Paperpile

I'm having an issue where Citation Manager plugin isn't properly extracting the {year} info from the BibteX file exported from paperpile. Not sure why. The data looks like this:

@BOOK{Bude2001-id,
  title     = "Philologie",
  author    = "Bud{'e}, Guillaume and Garanderie, Marie-Madeleine de la",
  publisher = "Les Belles Lettres",
  year      =  2001,
  address   = "Paris"
} @