Since last December by the middle of the week (I leave my Mac on during the week as I work from home), both my MX mouse and MX keys revert to basic mode. I.e. none of the advance features work. I can't scroll on my mouse I can't use the function keys on my keyboard and I can't open this app, it just hangs when loading. The only way to fix this is to reboot my Mac which is a very painful process as it's 6 years old and like its owner, doesn't like starting up first thing.

This is a REALLY irritating problem.