Towards the end of 1991, Mandic became an extended member of Riblja Čorba. The idea was to include Mandić in the creative process of the band's planned farewell album "Labudova pesma" by having him write and compose half of the songs, and later, upon its release, tour as their keyboards player. The material was recorded in Vienna, but as it was being prepared for wide release a huge row erupted between Mandić and band leader Bora Đorđević. As a result, Mandić demanded that all his tracks be removed, and even obtained a court-ordered junction prohibiting their release. In the end, the album's released version contained only eight tracks – half of the originally planned number, and it also ended up not being Riblja čorba's last as they soon changed their minds, deciding to continue playing and recording. On the other hand, raw studio versions of Mandić's unreleased tracks have since then become rare and valuable collector's items.