I have the same problem on multiple NUCs, all using Harmony remotes. It used to work fine until I updated them recently to 11.0.4 (I think they were on 11.0.1 before). After that update, they all started showing the power menu instead of shutting down when I send the 'power toggle' command from the remote. I have now upgraded them to 11.0.6 and tried that `keyboard.xml`, but they are still acting the same.