Hwywife

We have a 2017 Sport Explorer that we are currently in the middle of the buy back process with. It had/has this shudder or stutter in what feels like the transmission when going about 55mph.. especially when on any kind of incline. Anybody else have this issue with the Explorer? I e seen where its evident in the F150 but havent heard anything about it being in Explorer? Anybody else have to go through the buy back process? We havent received our offer back from Ford yet but are really confused on the process. We certainly do not want to replace with another Explorer so does that help us or hurt us in this process?