Intermittent window roll down

Z_U_later

I'm having intermittent window roll down problems on the passenger windows. I would use the auto roll up features where you just pull up the switch for both window to go up from the driver side and for some reason that passenger side window would go up and then go down halfway. It happens both when the top is up and down but I notice it happening more when I first close the roof and roll up the window. The funny thing about this is when I took it in to the dealership to see if they can fix it the darn thing decides to work so the dealer didn't believe me since I was not able to replicate the problem. Any one else having this issue? Anyone know how to resolve this issue is a better question?