Product blocking the conveyor

Hi VC Community. I have an issue with my assembly product blocking the conveyor. I assembled a product which cans will be put on the cardboard. The process involved is, a human will put the cardboard manually on the conveyor, then cans will be push by the pusher conveyor, and placed on the cardboard. But, the problem is, that the cardboard blocked the conveyor, and cans were not even transportin to the process node. Is there any suggested solution for this? Thank you.

You need to add extra process before this ‘assembly point’ where you transport the can bundle in from the conveyor container, and then transport the bundle out to next process (which contains the cardboard).

It works. Thank you very muchhh…