I'm playing FTB Ultimate on 1.4.7, and so far I would like to note 2 issues:

1. GregTech machines are displaying their names as "You ran into a serious bug. If you have legitly acquired this block, please report it immediately."

The NEI tooltip displays the name correctly.

I should also note that I'm playing on a server, and sometimes the NEI tooltip would sometimes say the same thing along with a blank machine texture whenever I join the server, but it goes back to normal after a few seconds. blockhelper will always say the same thing as the name.

2. Some of the IC2 machines, such as the induction furnace and the rotary macerator, display "unknown" as the mod name

Number 1. is reproducible, however number 2. isn't. Maybe this was fixed in some release?

Number 1 is being added to the todo list. I will close this issue for this.