Hello,
In fact, it is a bug fixed in 3.5.0, to keep the selector of week days logical.
So, if you want to set the period as one event, don't select any days.
But, if you want to display the days as separated days, you have to select the weekdays.
Hope this helps
This improvement allows now to set a period as one, or as individual dates.
Regards,
Cyril