SCSP support is heavily broken in both, M1 and MAME.
It suffers from severe timing issues that make the drum loops in Fighting Vipers (which Sonic the Fighters is based on) go out of sync with the music, so I disabled SCSP support for now.
(Both emulators have secret tricks to enable it for testing, but it really isn't ready for serious logging.)
If you want an example:
https://vgmrips.net/misc/fvipers_01.vgz
There is a sampled drum loop that runs along the music (00:18 to 00:31) that keeps getting slightly out-of-sync.