The ground attacks also don't work from people in the alliance who has reported it to me, however a less important issue is the fact that the bounties page on the test server is a bit messed up: https://test.politicsandwar.com/world/bounties
Personally, I don't think it's the best idea to do 1/3 for all the troops. I can understand raising them however there should still be some form of diversity in how many you can buy instead of a flat amount.