Creating and deleting a folder via DnD duplicates the very last icon in the app grid
See the video: https://www.youtube.com/watch?v=24r2lrPf8f0
- Drag 2 icons together
- Drag one out
- Drag the other one out
On about 20th second of the video it can be seen that there is an extra page. Then I create another folder to remove the "overflow" and there are 2 ephy icons.