Hello, I installed new Power Stop rear pads and rotors two weeks ago on my 2017 JKU. Since then I went wheeling locally and have driven to work daily (which is only 3 miles away) and I only go 30-40 mph tops to work. I hadn't driven on the highway all week. No issues. Just did the front brakes a few days ago and went up the highway and could smell a strong burning smell. Got to my friend's house and drivers rear was smoking and had a strong metallic burning smell. Other rear and both fronts were totally fine. We popped off the tire, caliper and rotor and checked it all out, caliper not sticking, slides lubed and seem to be working fine, ebrake shoes aren't too tight to the rotor, it came off fairly easily. No issues found. No rocks or anything obvious stuck anywhere. Reassembled and it wasn't smoking anymore but still had a burning smell when I got home. Now today (3 days since then) it was slightly smoking and stunk when I got home from work after an easy short drive. I'm completely baffled. I've done brakes on numerous vehicles for 20 years. Any ideas or obvious things I'm possibly overlooking? Any help would be greatly appreciated.