This is getting interesting.
By the way, this is a very low priority- the flows did import after all- but in new flows. And I think I know where I went wrong and assumed that NR wasn't importing the flows.
This project is over and not a high priority, I just wanted to save the flows for possible reuse next year. (NR was controlling an Easter-themed game and included RFID card readers, Alexa [for the voice], electromagnets and other challenges you would see in an Escape Room.)
My steps to import the saved flows were to create a new flow (Flow 3) then import from clipboard. clicked on "Current Flow" then Import::
When I clicked on Import, I saw something new that I did not see before because I probably wasn't watching the screen:
And this was the result:
So you can see why I thought nothing imported.
After a few more attempts, I decided to try something else and clicked on the right-scroll of the flows tab, and I discovered that the flows did import after all. In new flows.:
So, in conclusion...
Did the flow import into a new flow tab because I originally copied every node on a named flow?