I'm impressed, it fixes 10055, the Sonivox loop mode bug. Not mentioned in the fix list, but I just tested it.
I suspect that the problem is really with the Sonivox instruments, not Mixcraft, but I'm happy that I can use my cheap but good-sounding strings again whatever the case.
3.4 GHz i7-3770, 8G RAM, Win 7 64-bit nVidia Quadro NVS300
2X PreSonus Firepods, Alesis Monitor Ones, Alesis Point Sevens