I cracked my head the past two day to find out a solution for the following problem. In our asp.net core app we have 2 schedule components.
In schedule A one can extend an event by draging the bottom-border of the event down and the event is correctly resized.
In schedule B one can extend an event by draging the bottom-border of the event down BUT the event is wrongly resized.
After a truck-load of trial and errors I found out that startHour is the culprit.
In schedule A it is set to 06:00 and in schedule B it is set to 07:30. It turns out that if startHour is not set to a nn:00 format the drag-to-extend is doing weird stuff.
Limiting the viewable time-frame though is working correctly with both 07:00 and 07:30
Bug or not ?