I'm reporting this at all mod locations as I'm not sure where the problems is, but there appears to be a conflict between FARL, Dectorio, and Alien Biomes. When FARL is used in maintenance mode for laying tracks (regardless if there were pre-existing tracks or not), it will "rip up" the ground tiles in front of it, leaving only grass in its wake and throwing the Dectorio landscaping tiles of the equivalent type the ground used to be into its cargo wagons.

The FARL will not do this with either Alien Biomes or Decotrio disabled.

https://imgur.com/a/vvlCI