I am trying to do a vertical take off with the delta glider but I am unable to even get off the landing pad. I am on the scenario Cape Canaveral, I bring the Hover lever all the way up, I am able to see all the particles for the hover effect but it is glued to the ground. It won't leave the ground unless I double tap the landing gear to bring it up and down which will make it bounce. I am able to go on the moon scenario and take off but I can't on earth for some reason.