On July 21, 2017, the group released "The Knife", the band's first album featuring Mike Herrera, Travis Barker, and Philip Sneed (Moon Valjean). Darrin, Kelly, and Charlie left the band prior to its release. Darrin Pfeiffer left the band due to personality conflicts with Feldmann. Darrin spoke about some of the conflicts with Feldmann on an episode of Mike Herrera's podcast. Kelly Lemieux currently tours with Buckcherry, along with other bands and has cited that for his reasoning behind not being an active participant with Goldfinger. Charlie Paulson did rejoin the band on stage for the 2019 Back to the Beach festival and Vans Warped Tour 25th Anniversary. Paulson has since rejoined the band as he has played with them in all their recent shows as well as joining them on their "Fueling The fire" tour with Less Than Jake in September 2019. The band's live lineup generally consists of Feldmann, Paulson, Herrerra and Sneed, with Barker occasionally playing live shows and other friends of Feldmann playing drums. Other musicians fill-in on guitar and bass when Paulson, Sneed, and Herrerra are not present at shows as well. Their live shows often feature horn players from numerous other ska bands, including Ruben Durazo, Matt Appleton, Billy Kottage, and numerous others.