Board Thread:Questions and Answers/@comment-8418178-20130419165941/@comment-6294495-20130420023716

It might be clogged or there isn't a valid destination. Make sure items have a place to go that will accept them. Then, try breaking the Transposer and replacing it, also notice if items appear when you break it. It's not a glitch, you just have to get used to the behavior of RedPower transport blocks.