Factorio Forums

Expected behaviour: Emptied pipe network reverts to grey no-fluid colour

Observed behaviour: Emptied pipe network retains coloured overlay of previous fluid despite having no fluid contents. Reloading the game shows the proper grey colour.

Steps to reproduce: Disconnect a pipe segment from its fluid feeder, then clear its contents.

This is working as intended; it retains the color of the last-seen fluid, but this state is not saved, so that is why it resets upon reload.

You can tell that it is truly empty by the lack of fluid icons (though these also intentionally have a half-second delay before the disappear).