For long haul on the dreamliner, the “bug” is that ATC wants to keep me at 16000 ft despite planning for a FL370 cruise. This has happened 3 times in a row. I just ignored it and went to FL370 since I can manually set autopilot on the 787. Despite being 30 minutes into cruise and well past when FL370 was planned (take off was 60 min ago), ATC still wants me to descend to 16,000 ft. If I was stuck using the AI, I’d be stuck at FL160.