Im getting few items in the upbelt-in, and the downbelt-in is full ... The up-out is having few products, and the down-out is full... Its mirroring the input and not splitting equally.
OBS: Nothing is stored on the container. The items are just passing.
OBS2: If you see the big picture, seems to be 2 bets running the items independent, not "merging" equally.