We own a Dec 2017 build MX100D and recently had both top Falcon Wing Door glass panels replaced. These glass panels have the rubber seals integrated around the edges and are a single part number (glass and seal). After a year of ownership, the rubber seals started deteriorating and became a tar-like oily mess which would streak black tar when wiped clean. Our service center said these windows have gone through 5 different revisions over the years. The picture above is a random MX I saw in a parking lot today with the same problems I had. Has anyone else had problems with their Falcon Wing Door Glass seals deteriorating?