Yes. I never knew it until I got one. Mine had such a bad crop problem that I dealt with it the whole time I had her. (There was a few breaks with the crop problems after she went through some special treatment. If I didn't do the treatment right, she'd get worse.) So because I had a crop problem hen, I ended up looking at other threads with hens with crop problems. That's when I learned that it's common for the Sussex to have crop problems. A good lot of the threads I was looking at the time of hens with a similar crop issues as mine had were Sussexes.
(Now I do know there's a difference in a lot of breeds which includes Sussexes if you buy them from hatchery or a breeder. Mine came from a hatchery, though I don't know where those other cases were from. It could be a hatchery defect, but I looked into it deep enough to know.)
I had both sussex, light and speckled. no crop issue either but I live in europe, greece. it seems that some chicken breeds don't tolerate any environment. I have heard many times that RIRs are hardy chickens and lay a lot of eggs but a few friends of mine tried to raise them and failed. they simply don't live long here and lay just a few eggs that do not hatch well or chicks die within 2-3 weeks.