I placed down a simple corner of this mod, the belt goes in and comes back out fine but once output belt is full where the output comes out the input still goes in. When i check underground the conveyor that is also moving but when i back out the output belt is full so how can it possibly still be moving out of the underground belt if the belt coming out is full

the'is a buffer tha contain 2 slot of items

for precision 2 slot upground and 2 downground for each corner.

these buffers are present to make the mod UPS friendly