Links mode does not change from direct to loop or reverse after node drag-and-drop. The same thing happens if initial nodes position is changed with XY coordinates. It appears that the mode is fixed after initial alignment and that it cannot be changed despite changes in XY coordinates causing some loops to be broken and others to be created. HTML and Javascript environment.

https://plotly.com/python/sankey-diagram/

Expected behaviour: Links mode (loop to direct and reverse) is redefined after (or during) each change of node position (drag-and-drop or setting XY coordinates)

PS: this tool is amazing, I discovered it after using Google's оne, and its flexibility is incredible