Power (reboot, poweroff) functions in UI not working?

I’ve just upgraded to the latest set of modules as of Feb 10, 2016 6AM EST, and now I find that the Admin>>System Admin>>Power Options>>{Power Off,Reboot} options don’t work. ssh or console can reboot or power off, so (*) it doesn’t seem like a serious problem, but is anyone else having this issue or have a fix for it?

(*) assuming nothing else happens on GUI reboot versus ssh reboot…