I am trying to mark the Christmas period as non-working time in a project plan, without success.
I open the calendar, mark each of the days off as "non-working time" selecting the radio button, days are correctly marked in red in the calendar, and I finally exit by pressing OK.
I save the project plan, open it again, and my tasks still start and end in the middle of non-working time.
I am using ProjectLibre Version 1.5.7.
Happy to attach the plan, if it's useful to find out what's wrong.
Am I doing something wrong, or is it a defect?