Hi David,
I uploaded dbaldwin/tello-adv-setup and ran tello_camera_fly.py on a Tello Talent. Once it worked as expected. I no longer get a WIN_ERROR, Thanks for solving that. But now I get an image error which makes the application unresponsive. The drone just takes off and lands shortly. Even after takeoff, the python script is totally unresponsive to keyboard entry. I was able to run tello_camera_no_fly and 01_takeoff-land with no issues. Thanks for your assistance!