It's a little difficult to see, but the waypoint altitude partially hidden by the plus icon seems to read 1879. That would certainly do it! I have found that on the small smartphone screen it is ridiculously easy to change a waypoint's altitude without realizing it. Before doing the last Save I have to zoom in and very carefully pan around the FP making sure not to change anything.
When I got TeamViewer to work it made life a LOT easier when creating Flight Plans.
Thanks, come to think of it, when I went back to the saved route, I did see the 2nd point high. I thought it got changed after the flight, but apparently not. On the second attempt, after I “fixed” waypoint 2, the drone just stayed on waypoint 1 and gave me an “corrupt file” message.
One other thing I did wrong, was not placing waypoint 1 at the launch point, to get altitude, making sure it cleared the fence. I came too close for comfort to the fence taking off.
The second thing I did wrong, was that I didn’t download the map before starting the new route.
I tried TeamViewer, but was having difficulty zooming in and out. The mouse wheel scrolled the screen up and down.