I think that is because i suppose your car is parked for months. So after months if the handbrake is released the brake pads are sticked to the brake disk. The best way is to put the car in R if you park for a few months. If this is possible of course otherwise you have to use some wheelblocks.
Under the long-term parking I meant a night or a few hours, feels like vibration comes from the CVT not from the brakes, about first 2 3 meters , and most of time on a rear gear , but vibretion less or disapear when not using eco mode. So now i drive just on normal mode