I am a streamer on twitch( https://www.twitch.tv/draconianessence ),and i was testing out our sea world map.Once we researched factory mk2 after mk1.My good friend and i were goofing off and he found a bug.That bug you may ask is well...we can put landfill inside ALL the buildings and have it keep going and going for a LONG time,thus making the mk1,2,and mk3 buildings insanely OP.Figured i'd let you know of it! http://prntscr.com/hoga82

That doesn't happen without any other mods. Give me your mod list and I'll tell you which mod's fault that is.

(The void outside factory buildings is the same stuff as the void beyond the edge of bounded vanilla maps. Usually you can't build landfill over it under any circumstances, so some mod must have been messing with that.)

Will do,thanks for the reply!