SBMHAWK-LT -LT2 etc..., crated F2(L), F2(G), and later versions of same technologies simply do not appear in the construction options for yards. even though they are all in the tech_systems and expendables tables and properly linked by IDs.
Anyone has an experience with that, or am I missing an obscure table entry somewhere which has to be set? I used existing techs as template for my values.