Then you should report it to un4seen.com forums, the guy behind bass.dll.

I use an old 2008 version of bass.dll, because the newer versions seemed to have messed up the output quality on some tracks (and no one noticed but me. My hearing must be too good.).

It will also run neve.s3m fine. So yeah, try the old version here: http://www.filedropper.com/oldbass

EDIT: Okay, So I've tried the 2013 and 2016 edition of bass.dll via load music file, and I have no problem...Maybe its to do with the massive scope of that level itself and plus not supporting it well? idk. So uhh, try this too: http://www.filedropper.com/neve