external-drag-over class not being applied consistently


I have a scheduler in timeline mode and I’m dragging items on to the grid to create events. I’ve tried to use the external-drag-over class to customize the background colour of the cells when I’m dragging the item accross the grid. However the external-drag-over class doesn’t always seem to get applied the the cell as the mouse passes over. I’ve found that dragging to fast or simply moving from row to row or column to column stops the class being applied and I have to slowly move the item around until it comes back.

Is this a know bug and if so is it being addressed? Or is this down to my scheduler? Are there any other ways of highlighting a row when externally dragging on a event?


can you please give a link to the demo, so we could reproduce the problem?