Hmm?
Sounds like windows is your problem, or the EMU 1212m and
an ultragain 8 channel in through the adat input. config. and compatibility

I have had problems like that when using a motu 2408 and 3 adat config.
Kept loosing things like drivers, plugins... very frustrating
I use all sonic foundry stuff and switched to a delta 1010 about 5 years ago, and using vegas 3 or 4, can record 8 tracks at once, and have all plugins on both?
After reading all of these helpfull posts, If it were me, I would uninstall everything including hardware, re-boot, re-install everything, software... getting my computer to re-install the hardware and drivers too.
Sounds like something in O/S is confused?