using tpt.el.co2.falldown=0 works to stop the problem but that doesn't make sense since I looked at the source code on github and co2's falldown is already set equal to 0 so that command shouldn't be necessary.
@NUCLER_FOX(View Post) Can you show an example of it leaking? I know that gases can float through 1 pixel of dmnd (in any of the 8 directions)
@Niven(View Post) It's actually set to 1, which is the falldown for powders, meaning it uses the powder update code. I didn't really notice a major difference when changing it though. I'm not sure why it's set that way, maybe it was an accident, or another problem with copying/pasting like the FILT and many other elements melting bug.