Details about the bug. I have found a bug in Syncfusion Vue Gantt package, version 22.1.34 (latest version when this ticket was created). Only by upgrading the package version from 20.4.54 to 22.1.34, the drag and drop feature stop working.
Reproducing steps. 1. Clone a git repo from here: https://github.com/meidikawardana/syncfusion-sample 2. Checkout `develop` branch. 3. Then in the command prompt, run this command: `rm -rf node_modules && yarn && quasar dev` 4. It should open a site in the browser: http://localhost:8081/#/ 5. Try to drag any card from any column to any other column. It should work. 6. Then checkout branch `upgrading-kanban-package-makes-drag-and-drop-not-working` in the github repo, and repeat step 3. 7.Try to drag any card from any column to any other column. It won't work.
Screenshots, code snippets, and stack traces, if applicable. Here's a demo video