Implemented Pressure Chamber Problems

I'm having problems with another mod! For some reason, when I put compressed iron into the interface, it stops in the interface and refuses to continue into the chamber. This is really annoying because the maximum amount I can put in without it getting stuck is like 8 or something. Is there a way I can fix this?

 

Do you have any hoppers or anything attached to the yellow bit of the interface ?

 

The yellow bit goes into the pressure chamber. But the item gets stuck, so I can't get it in. The problem isn't that I can't pull it out.

 

Do you have it set to a redstone signal ?

 

It gets stuck in the interface when I want it to go into the pressure chamber. So it's nothing with the pipes.

 

try using hoppers instead of itemducts, i never had problems with them

 

I don't know if this is the problem, but with item ducts, up to 8 seems to go in instantly, while more seems to take awhile to go in? are you just not being patient enough? That's my experience with using ducts anyway....

 

I checked and I managed to get 16 in, I'm pretty sure I'm patient enough though