The Curiosity Rover also ran into parachute testing problems.
"And the parachute blew apart basically. So the [wind] tunnel is fine, but the parachute, uh, it's a loss." --Doug Adams (the other one).
The Curiosity team - which also assembled a team of Martian parachute experts - eventually decided that they were incapable of simulating Martian conditions in the wind tunnel. The air was just too dense and the parachute would work fine on Mars, but not terrestrial wind tunnels.