Can't drag widget to top of grid, widget goes down one row when clicking it

I use the grid with the floating option set to false. When I drag a widget up, I won't be able to get it to the top. The highest point I can get to is row 1. If I turn the floating option on, it gets to the top as expected. The issue also manifests itself when simply clicking a widget, without dragging it. It will go one row down.

Any idea how I can solve this issue?