I'm sure I missed something basic but: my copter is not saving any flight logs. Going into the CLI in the logs function, I see that GPS PM CTUN NTUN CMD are set to log enabled, but every time I use the Log Download function it tells me "No logs."
What am I missing?
Could be a corrupted log file. You shoud try to delete all logs.
Did you had a crash, or did you power off the board before disarming motors ? This could have produced a log file corruption.
I did had this problem at least two times. Perhaps you should open an issue in the issue tracker, so that eventually an automatic file recovery procedure would be implemented later.
Then i think you should report the problem in the issue tracker. I did have the same problem but was able to recover.