0.5" more fender gap on RR than LR

I was installing my spacers on Sat and noticed the gap on my RR was a little too high. I finished installing the spacers 5mm up front and 15mm in the rear.

When I finished, I figured I would check the gaps (top of tire to bottom of the wheel arc) and it turns out the RR has a full inch gap and the LR only has a 0.5 inch gap.

I also noticed (when I was jacking up my car to install the spacers) that only the RR was making a squeaking noise until the wheel was off the ground. The LR did not make any noise. I was also able to get the squeaky sound by lifting up and pushing down on the RR tire when it was in the air.

Basically what happened prior to this (this was the only time I noticed the extra gap) was I finally got around to getting the SUM recalibrated. One of the sensors in the front wouldn't update, so I got the dreaded headlights pointing down. I brought my car in to the dealer on Friday and the service manager stated that they had to download some software to get it to work.

After leaving the dealer, the car felt different but I couldn't put my finger on what it was. Now it makes sense seeing the 0.5" higher gap on the RR.

For all you experts, what do you think is the problem. I want to give the dealer as much info as possible before I go in.

No pictures for now.

Thanks,

Paul