Hello @N6722C,
I cannot reproduce this. Here is a test flight plan I created just now from the World Map, a flight from Logan to JFK with a few custom waypoints en route. I made the first one, saved it as “Test Flight Plan 1.pln” then clicked Fly to start the flight. I then exited back to the main menu, loaded “Test Flight Plan 1.pln” and re-saved it as “Test Flight Plan 2.pln”. I then opened both files in Notepad and copy/pasted the contents of each into text-compare.com. There were no differences in the files.
Test Flight Plan 1.PLN (2.5 KB)
Test Flight Plan 1.PLN (2.5 KB)
[Edit] It looks like the forum software won’t allow me to upload two identical files even if they have different file names.
Thanks,
MSFS Team