V1.5.20 is another small interim update with a few small fixes and tweaks.

• Added a separate import list for construction resources
• Added icon overlay to building if any import or export rules exist
• Fixed changing export rules on buildings not necessarily calling all the correct triggers for resource recalculations
• Fixed space port not resetting demand count on ship departure
• Fixed a particular situation where game wouldn't accept adjacent building placement
• Fixed layer height reset upon clearing natural resources not confirming which could have lead to potential weirdness when loading a save game
• Fixed on military gain process not taking into account final tiles causing low stone/tree notification messages not to count properly
• Fixed stackbots moving to the wrong locations when loading and unloading resources from boats and trains (this was only a visual issue)
• Added two more stackbots to the train station building
• Made all building construction incoming stacks to 12 instead 8
• Fixed [Escape] while text editing triggering in-game menu
• [V1.5.20.1] Fixed boat-related error in V.5.20 causing the game to freeze
• [V1.5.20.2] Fixed being unable to save a loaded game in V.5.20