Rabbits can have a few sheds each year and each one can vary in intensity. When they have them can also vary per rabbit. So one rabbit can have sheds that vary from his prior sheds. How intense or when they shed can be different per individual. They don't all shed at the same time.
In that case, would you like to post a photo (maybe up close of the skin)? Our health moderator may have some experience to offer. (Or perhaps another member might)