I have an ASI294mm so it requires Dark Flats. To use autoflats,I would need to use skyflats and each flat has a different exposure, so this makes its use somewhat limited. However, I have been playing around with it
I notice that the default bin is 1x1. The autoflat setup will take the information for flat creation from the sequence lights. This works for most fields but even when the sequence has all the bins as 2x2 it still defaults to 1x1. Fortunately, in the manual mode this can be overridden.