What I can remember reading was that Jon was ready to go with his third solo album in '98 but there was some problem at the record company which meant that there had to be a fairly prolonged delay in any release, bringing it into '99. Jon decided instead to get the band back together and use his songs and Richie's songs for what would've been Sex Sells produced by Bruce Fairbairn. Bruce sadly died and the band interviewed a lot of potential new producers and decided on Luke Ebbin. They then continued to work on the songs, rewrite/record some, and write and record new ones and Sex Sells, the song, was dropped, and Sex Sells, the album, morphed into what became Crush.

So there really was no lost album, no more than there was a lost album with Have A Nice Day when they decided to rework and rewrite that one.