Leginon

Session 18oct18f, Krios1, Falcon/ FalconEC camera
REceived error in Flacon Target adjustment: Mean intensity of image is less than 5 persent of old.
Image came in black (0 intensity)
Pressing play let it go to Navigator and take a good sq image.
However, it then went back to Falc_target_adjustment, took another black image and paused at the same error.
Only way to get past the error was to press stop button, which then let collection continue as normal.

Adjusted fei.cfg to add
EXTRA_PROTECTION_SLEEP_TIME = 0.3
to try to avoid error, however it is counter-intuitive that the only way to get past the error is to press stop