High supply consumption was intentional. The heavy cavalry icon is unfortunately a known issue. The goods requirement issue has been fixed, thank you for pointing it out.

The heavy cavalry in all ages seem to be missed up their icon is missing and they have no goods requirements

You should take a look at the heavy cavs, in my game the t2 heavy cavs icon is messed up and the cost doesn't get discounted by the market because I think it doesn't pull from any materials.

Was the high supply consumption intentional?