No problems here. so not a ROM issue. but you should try this http://forum.xda-developers.com/show....php?t=2588979 it tends to fix most issues when adb/fastboot not recognised properly. also a fix for driver problems with windows 8.1 half way down on the link i have posted.
I didn't had any problems with my STOCK-ROM before, activating debug modus and everything was fine for adb/fast boot!
After pushing Pacman or CM nightly (same bug on both rome) on my mini i can't get access by activating the Debug-Modus for using adb.
Just pushing debug modus to off and i have no problem to get access but i need debug for adb. -__-