I've been using the waterproof teleport pipes to transport oil on my server. All of the sudden when I moved the pipe that was sending oil, it stopped working. It was on frequency 1 before so I changed it to 2(never before used) Both pipes are on the same frequency and one is set to receive, the other not. I tried setting both to receive but no difference. And I made sure there are teleport tethers(chunk loading blocks) near each pipe. Is this a known bug and is there a way to fix this problem?