Another marked timespan issue. Take a look at this example, please: https://snippet.dhtmlx.com/z648m85b
You can see there is a blocked timespan after startup with no “sections” specified for that one (red bg).
Now try to add a blocked timespan with any of the 2 buttons. These actions have “sections” set to the 1st resource - “r1”.
Notice how adding that timespan removes the red marking for all the row for that day.
If you try to create an event over that blocked “missing” span, it doesn’t work - which is, of course, correct.
How can I get the coloring back?