2018 Escape 1.5 Ecoboost - has 5,500 miles on it - bought three months ago...In the morning, when I start it up, it starts fine, but it will idle real, real, real rough...give it some gas, idle will smooth out. Start driving, runs fine, idles fine at stop lights, etc. Car is all stock, nothing done to it, runs great, just has a rough idle on cold startup. No DTC, no pending DTC, all readings normal. Anybody have any experience with this issue?