I have an ongoing problem and it only happens on the first start of the day. I have an 05 330 Inspire Country Coach. We start the engine, then pull up jacks, let it warm up until the air is at 120psi and I hear it pop off. I put it in drive and it will hardly move, almost as if I am in neutral. The pressure is still up to 120psi. In order to move I have to put it in neutral, rev up the engine a few times and then put it in drive again. Sometimes it starts to move at a very slow pace, I have to put it back into neutral rev it up again, put it back in drive and then it will usually go. This happens even if I let the Motorhome warm up initially for 5-10 minutes before driving. The rest of the day I can stop and start with no issues. I have taken it in to be looked at and of course they can’t duplicate the problem. What can be causing this? Some type of bad safety switch, transmission....?