Hello all,

I know i come after the main waves of modders and even players but i hope someone will be able to help.

I created custom buildings, unlocked via technologies, to reduce inflation by 10%. 

<StarSystemImprovementDefinition Name="StarSystemImprovementDefinitionName" SubCategory="SubCategoryDust" ScoreProvider="StarSystemImprovementBuilt" OncePerWorld="true">
<SupervisorGain Name="Dust" />
<Cost ResourceName="SystemProduction">10</Cost>
<Cost ResourceName="Strategic3" Instant="true">1</Cost>
<Cost ResourceName="Strategic4" Instant="true">1</Cost>

<PathPrerequisite Inverted="true" Flags="Prerequisite,Discard">ClassColonizedStarSystem/StarSystemImprovementDefinitionName,!FastForwardedImprovement</PathPrerequisite>
<TechnologyPrerequisite Flags="Prerequisite,Discard,Technology">TechnologyExample2</TechnologyPrerequisite>
<SimulationDescriptorReference Name="DustReductorSD" />
<SimulationDescriptorReference Name="DustBuilding" />
<SimulationDescriptorReference Name="StarSystemImprovementUpkeepStage2Weak" />
<PopulationEvent Name="InflationReductorPopulationEvent"/>
</StarSystemImprovementDefinition>

Everything works as expected :

* The custom PopulationEvent i created

* The costs

* The technology prerequisite

* The effects of the building via the SimulationDescriptors

However, my problem is that this building can always be rebuilt in my star system (like ships for instance). I would expect that, once built, it's no longer available in the improvments buildable list of a star system, as any other simple building.

That's supposed to be the role of this prerequisite :

<PathPrerequisite Inverted="true" Flags="Prerequisite,Discard">ClassColonizedStarSystem/StarSystemImprovementDefinitionName,!FastForwardedImprovement</PathPrerequisite>

But does not behave as expected.

Would you have an idea ? 

Thanks !