Work Days

The region and language settings on your computer or phone define your 'locale'. This is used to correctly set your working days, hours, and chart start date.

If you access the same chart on devices with different locale settings, your work days may get reset to all 7 days. This is because the locale of the device you're using has changed, altering the language, its derivative e.g. (UK vs US English), and its date time format.

Look at the region and language setting on your Mac, Windows, IOS, or Android devices. They will differ somehow.