The discovery sphere doesn't unlock for the Iconians, the problem is that the generic name of the research matrix tech is "ResearchMatrix" when it needs to be "ResearchMatrixTech"

From the IconianTechDefs xml

-<Tech>

<InternalName>IconianResearchMatrix</InternalName>

<GenericName>ResearchMatrix</GenericName>

<DisplayName>IconianResearchMatrix_Name</DisplayName>

<TechTree>Iconian_Tree</TechTree>

<ShortDescription>IconianResearchMatrix_ShortDec</ShortDescription>

<Description>IconianResearchMatrix_Dec</Description>

<ResearchCost>566</ResearchCost>

<TechPoints>1</TechPoints>

-<AICategoryWeight>

<Military>18</Military>

<Growth>16</Growth>

<Tech>20</Tech>

<Diplomacy>6</Diplomacy>

<Expansion>14</Expansion>

<Wealth>8</Wealth>

<Influence>10</Influence>

<Fortification>12</Fortification>

</AICategoryWeight>

-<Prerequ>

-<Techs>

<Option>IntegratedResearch</Option>

</Techs>

-<TechAge>

<Option>AgeOfAscension</Option>

</TechAge>

</Prerequ>

</Tech>