As Black Flag was about to return home, UK customs detained Colombian drummer Robo due to visa problems, and he was not able to return with the rest of the band. This would be the end of his tenure with the band (he was able to eventually re-enter the United States in mid-1982, at which point he would promptly join the Misfits as one of that band's last drummers before its 1983 breakup). The loss of Robo put an end to extensive touring for a while. Emil Johnson of Twisted Roots filled in for one tour, but it was clear he was only temporary.