Gantt Chart - Issue

[Marko Kovač]

Hi!

I have a weird issue with gantt chart so if anyone can help me with this.

I am using two range dates:

['1', '1', '1',new Date('2020-01-06T00:00:00'), new Date('2020-01-10T14:06:23'), null, 100, null],

['2', '2', '2',new Date('2020-06-22T00:00:00'), new Date('2020-06-26T14:06:23'), null, 100, null]
]);

Info window for both rows show duration of 4 days and that is ok. If you remove the second row or the second list item the info window will show a duration of 5 days

Can anyone explain me what is going on with this?

Thanks a ton!