I was developing a Lightning Component with JQuery and Dragula (a JS drag-and-drop library). Everything was going well, until the Sandbox updated to the Spring 19 Release and now I recieve an error when I try to drag-drop. The component still works in my other Sandbox that is in Winter 19. I receive the following error:

Uncaught TypeError: target.getBoundingClientRect is not a function throws at https://ceievents--maintask.lightning.force.com/resource/1546019884000/Dragula/dist/dragula.js:515:25



The line referenced is a line in the library that calls the .getBoundingClientRect() function. I don't get any error or notes on the Console Log. Any guidance would be greatly appreciated.