Setup: [gridstack] I'm using "0.4.0" merged to "1.0.0-dev" from the develop branch.
I have a column for the plugin/widget that I will drag onto the grid, so basically I use the jQueryUI for droppable and draggable.
Just discovered an issue while resizing and dragging of items around and after awhile trying to drag another into the grid generates and error "Uncaught TypeError: Cannot set property '_grid of undefined" line 933 "node._grid = self;". Screenshot is attached.
Also the "ui-draggable-handle" sticks on the grid with additional class named "ui-draggable-dragging". It totally breaks the plugin and you need to refresh the page to have all functionality back to normal but every other dragstop event.
<div id="sidebar">
<div class="item ui-draggables"><span>{json-config}</span></div>
</div>
<div id="grid1" class="grid-stack">
<div class="grid-stack-item">//loaded from draggables with json config</div>
</div>