SoulSand

Hello! So I built the translocator from the scematic and I can use it (it has worked both ways before). However, when I go through to get something and then want to go back, it doesn't work. Is there a cool down until I can use it again? I once waited like 20 in-game days and it still didn't work to go back through though. This way I always have to travel very far one way and can only skip the travel back. The guy that gave me the schematic says it saves me the long way back to him so I feel like it should work? Can anyone explain what is going? Many thanks!