Pearl

Hi. Its my first time playing kerbal. I was able to deploy my parachute in the ‘learn flight basics’ training mode. However when I exit training mode and attempt the rocket liftoff in regular ‘play mode’, the liftoff is great, but when I attempt to deploy the parachute at 20,000 ft, I hear the sound of the parachute deploying yet it doesn’t actually deploy. I keep going back to training mode and it works perfectly again. Any suggestions?