If got sunlight the EDS on KUBs/OCs might just fade off
i show my pic of KUBs using W760i to take
this is when it is cloudy condition

this is when got strong sunlight, i increased my exposure to
1.0+(i think) for my Sony W760i to prevent "half
disappeared" EDS.

Night condition- the EDS wont "half disappear" but
blurred instead.

The time when it is evening but the sky not dark yet

Cloudy condition: need more light in the photo, so camera set
shutter speed to slower to allow more light to be captured.
Strong sunlight: Photo confirmed overexposed when you set EV
+1.0. However, EDS captured because of the same theory. You want
more light, shutter speed slower.
Night condition: Blur because a much slower shutter speed to
capture light, even more when you don't use flash, thus a slower
shutter speed will result in your hand moving, thus the
blurness.
Evening: Similar to cloudy condition, late evening similar to
night condition