It appears that sperm entered one oviduct and not the other. Which is somewhat common. There are 8 eggs and 8 unfertilized ovum. All the incubation in the world will not help those. hahahahahahahaha But no harm in trying.

I wish I could help you as to why this happens, But I can't.
To me, its not about sperm count, as one side was fine. I guess there could be scaring or some other blockage to one oviduct. Nice kings congrats