Appointments+ service provider's user schedule (on the profile page) doesn't update

Appointments+ user schedule doesn't update. I tried disabling all other plugins and changed the theme to twentyfifteen. The global store hours are set from 1am - 5pm. I tried changing the working hours for one service provider to 1am-3am using the profile page for that user but it doesn't save. I tried changing the user to administrator level. Didn't work. I tried another user...same result.

I was able to change the individual provider's hours using the plugin "working hours" tab but the profile working hours selections don't change anything.

Any ideas?