Item Router not accepting items?

[Teraku]

For some reason, my MFR Item Routers aren't accepting items, from any pipes. Doesn't matter whether or not the item is mapped, and whether or not the "reject unmapped items" option is enabled or disabled, or what side the input is from. All items just fall out of my BC pipes.

 

I'm using regular stone BC pipes, so why isn't this working?

 

EDIT: My users are now also reporting that the Item Router isn't sorting correctly when dropping items into the top as input. It still sometimes sends items the wrong way. Is it bugged or something?

Edited April 3, 2014 by Teraku