im glad this finally got a look at but

<Tech>
<InternalName>YorSupportFieldMastery</InternalName>
<GenericName>SupportFieldMastery</GenericName>
<DisplayName>YorSupportFieldMastery_Name</DisplayName>
<TechTree>Yor_Tree</TechTree>
<ShortDescription>YorSupportFieldMastery_ShortDec</ShortDescription>
<Description>YorSupportFieldMastery_Dec</Description>
<ResearchCost>128</ResearchCost>
<TechPoints>1</TechPoints>
<AICategoryWeight>
<Military>20</Military>
<Growth>16</Growth>
<Tech>6</Tech>
<Diplomacy>12</Diplomacy>
<Expansion>18</Expansion>
<Wealth>8</Wealth>
<Influence>14</Influence>
<Fortification>10</Fortification>
</AICategoryWeight>
<Prerequ>
<Techs>
<Option>LifeSupportOptimization1</Option>
<Option>LifeSupportOptimization2</Option>
<Option>LifeSupportOptimization3</Option>
</Techs>
<TechAge>
<Option>AgeOfWar</Option>
</TechAge>
</Prerequ>
</Tech>

<!-- Begin Tech -->

the yor dont have lifesupportoptimization techs so the techs are there but not accessable