Victoria:

If you're referring to the RealStyle called "_SLIPJIG.STY", I just tried it on mine (BIAB 2015 Build 417) and it seems to be working fine.

You might try opening a brand new, blank song, then loading the style, then input (say) 4 bars of "a" substyle and 4 bars of "b" and see what it sounds like. I hear all 3 instruments, bass, drums and guitar.

Let us know if you still have problems and we'll see if we can get it sorted out.

Good luck!
LLOYD S