Can anyone get the flea and hammer contract to work!!?

[kugelblitz0]

I play Kerbal space program on Xbox and I have been having problems with the contracts that want you to test a booster engine at a certain altitude and speed I am able to get all of the check marks except for the "run test" of the engine which seems to to nothing once i get below the desired altitude the check marks go away and i fail and is forced to restart. 

I have tried for 3 hours getting this to work and i cant find out a way, I have tried firing the flea or hammer at the desired altitude and speed and it does nothing and landing with the engine intact still does not change anything. However I think i know what i'm doing wrong (kind of) to activate the "run test" you have to press A which on Xbox fires your next stage and for me this fires the flea engine and when you click"run test" it says its not complete when you look at the contract no matter how many times you click "run test" 

I don't know how to complete these test booster,parachute,engine at certain altitudes and speed it seems not to work if anyone on xbox knows a way to make these contracts work or know what I am doing wrong let me know.