hmm... somehow it worked this time around. Perhaps because I tried it at 4 am last time. Sorry for the false alarm :/

Found this topic when I searched for a fix. This happens with the (latest) svn-build and a standard download of the freeware BASS (v0.0372 cd) from your download page. Failed to load MT32_CONTROL.ROM| ScummVM exited abnormally (-127). Press any key to continue. Ofc, the wiimote refuses to reconnect ...