I do not understand this image:
The image is not overexposed (3000 counts only) so the streaks are not ‘blooming’, which occurs when the pixels are saturated (starts near 60000 counts). A streak downwards would be due to readout while shutter was open (down corresponds to the readout direction). But UP is very strange – it could happen if the telescope was moving while the Moon was being imaged, but as far as I know this is not a situation we have seen before. It could also happen if the readout direction changed – but I do not think that is possible – and in this case readout would have had to occur in both directions then.
Yet another odd one! Can’t see how this could happen except for electronic gremlins… we’ll have to keep this in mind for the software the autodetects streaking — may need to look elsewhere than just the bottom strip of the frame.