TL;DR: On Aquilo, this mod can cause ghosts and super-force building to stop automatically placing the required ice platform and concrete. The problem may remain after uninstalling because the affected placement data is stored in the save.
The mod appears to classify Aquilo’s ammoniacal ocean and meltable ice tiles as landfill terrain. This overwrites the normal placement chain:
ammoniacal ocean → ice platform → concrete
rough/smooth ice → concrete
In affected saves, buildings report “Cannot build on Ammoniacal ocean 2” or “Cannot build on Rough ice” instead of adding the required tile ghosts.
Recovery requires disabling the mod and restoring the saved per-surface/per-force cover associations. Simply uninstalling and reloading was not sufficient in my case.
