Renumber scenes

I have never been able to drag scenes around - sorry for my choice of the word "move".  In Story View I use the cut/paste method to move scenes around.  In the Player Menu, I use the up/down arrows to reposition items.  Thanks for the video demo, but I understand these fundamentals.

The attached video shows what I've been trying to do, in this case successfully by cutting/pasting scenes.  You will see that the scenes renumber themselves.

Then I went back to investigate my original file and discovered that I had shot myself in the foot.  I have my own Previous and Next arrows.  I mistakenly set the Previous arrow's trigger to go to the target scene, and the Next arrow was left triggerless.  This is what was causing the problem. 

Now that I have righted the ship, the scenes are renumbered automatically just way I expected them to be.

Thanks for following this, lesson learned!