I currently had a mileage reservation BKI-NRT in business on Malaysian continuing on to NRT-LAX in 1st on Japan. Malaysian outright cancelled the flight with no attempt to accommodate or alternatives. I called AA but they told me they could not help because it was a partner carrier. But they would still honor my NRT-LAX leg on Japan. Unfortunately NRT is a 5 hour flight from where I would be. In multiple attempts to rebook I got multiple phantom legs on both Malaysian and Japan. I obviously had to make alternate plans, but still check every few days and see the same phantom routings that when I go to hold disappear.