I am getting a similar issue. I assume the X1800 updated since it seems to be communicating with the players after the remaining player was finally successfully updated using a friend’s mac. The update utility says the mixer is up to date and it appears to have updated on Windows 7, which would not work with the SC5000 due to driver incompatibility. Not sure where I’m supposed to see new stuff on the mixer utility or another version number, though. I don’t see any mention of a new limiter that’s defaulted to Off, for instance, and the version number appears unchanged. Again, the update program says the X1800 is now up to date.