I’m just reporting things I see–not being critical.
Select several notes, one of which extends off the visible part of the board. If you drag those notes, only the ones that were totally visible will appear to be dragged. When you drop them, all will have been dragged.
Here, I’ve clicked on on the three selected notes and dragged them toward the left:
It should look like this during the drag:
Let me know if you need a video.