Draggabilly fails in Firefox for certain widths

[Robert Schneider]

hi desandro,

we purchased a licence of packery in 2016 and want to use it in a commercial project (dashboard), but we have issues with the drag function (overlapping items).
I could reproduce the issue on this website: https://packery.metafizzy.co/draggable.html, set the width of the grid container (.drag-hero-demos__grid) to 690px via style attribute and the dragging fails in Firefox (tested in versions from 38 to 56}. The items can be stacked on top of each other or the distances get totally wacked.

Any fix for this?

Best regards
Robert