ok i got my usb support back
downloaded ios 202 & 222-224 (hermes/rodries 5.1) from modmii download page 4
downloaded ios 249 & 250 with d2x-v8final from modmii download page 4
installed all 6 wads using MMM
all games working so far with configurable usb loader, vr51, havnt tried newest v65...
gunna use modmii and run it like a brand new system hack, then reinstall hermes cios and d2x differently to try to fix that usb support on the music games
i am having this same issue as well and currently searching for ways to fix it. i have found that starting the games with ios223mload allows me to play most games fine but not all, looking at your syscheck you seem to have all the right cios installed and that was what my next attempt at fixing...