I have been running a similar configuration for a month or two without the offline message , but it collapsed so reinstalled , and since then after every 2 or 3 songs i get offline metadata sent but the stream doesn't cut out , or go offline .
Also getting too much metadata sent ( streaming to 1 icecast and 1 shoutcast server ) , somewhere between 1 and 4 entries appear for each song , which i believe is a know issue , but is causing a few ppl licencing issues as the playlist.log file has multiple entries for each song.