I made a modified Terran Alliance tech tree to use to figure out how to use the editors to make my own. It was just a test so I only added 1 tech, Super Trade, to the standard tree. I renamed the tree Trader and changed the Internal name to Trader_TechTree.
When I try out the tech tree with a custom race I get these duplicate buildings. For example I get market center twice in the building list it is the same with other structures.
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