It was small thing, but rather odd. In the eBook dedication it changed "encouraged" to "engouraged". It flipped that every time. The submitted text is fine.What kind of errors?
It also lost the formatting for the whole enchilada when I tried submitting a minor revision to change an "a" to an "an" and change a couple of capitalised attributions . Turned the whole book into a continuous stream of text with no chapter list.
I will try again at some point, going through the whole process, not just swapping the body text.
As it is it reads fine but I see these things.