Issue
When dragging an item from the toolbar to an observation group the item is correctly added, but the drag helper is also added to the sortable list.
Desired Functionality
Drag an element from the toolbar onto an observation group. Depending on what type of observation it is, display the correct template for input.
In your sortableList binding, looks like you want to remove the item at the end, since you will be rendering an item based on what you push to your collection.