For some reason, SFM is unable to push into AE2 interface ATM10TTS

I have an ore processing cube with Compact Machines. Here the ores go in and get processed into raw ore. This ore then goes to, for now, a barrel with an import bus attached. At first I wanted it to push into an interface, but for some reason it doesn't, when it does to the barrel. It does pull from the interface, but not push.