I am having a issue getting Land_i_Barracks_V2_F, Land_u_Barracks_V2_F, Land_i_Barracks_V1_F, Land_Research_house_V1_F, and Land_Research_HQ_F to properly spawn items. I have been able to add spawns to other building that were missing them. I used the method provided here to successfully add spawns to some buildings.