Pressurized Tubes work properly only for a while and then stop (or start working in reverse).

A few examples:

A x3 ore processing plant. Purification Chamber can process around 7 items until it stops from lack of oxygen. After breaking and replacing the tube is starts up again, but stops after 7 items. And so on.

Small ethylene power plant. There's about 10000 Ethylene in the tank and the generators aren't even half-full but the gas isn't flowing. After breaking and replacing any of the tubes, the ethylene starts flowing until the tank is dry. About a minute later I filled the tank with 3000 Ethylene and, again, it didn't flow to the generators. Had to replace the tubes again.

Should be fixed - I will push a release as soon as I can.