Ugh, my Bront50 RB4 account is now missing more songs (1192, should be 1257)
There's the ugly RB3/RB merge that I know is an issue, but there are also 8 RBN songs in the Megapack that do work in RB4, the RB2 Free 20 work.
Part of the issue may be I'm using the Karaoke Book generator (which suddenly the link isn't working in export, it was moments ago).
Strangely, if I just go to that link directly, I'm getting different results now. I'm now getting 1271.
Edit: Ok, now it's working, and I get what's going on. The list is working properly now.