It doesn't mean that there is something wrong, there are many factors that go into a good shed. Stress can ruin a shed before it even starts. As long as you provide the proper temperatures and humidity you should have a god shed next time round. Bad sheds happen to everyone from time to time. They can be a pain to deal with but they certainly are not the end of the world or a definite sign that you are doing something wrong.
If the stuck shed doesn't come off it can cause problems, but usually only if it is a "ring" (as in the piece of stuck shed goes all the way around the snakes body) This can cause issues when they grow in diameter... but lets worry about that when the time comes. for now just give it your best shot to get it off. if using a damp cloth doesn't work there are other things you can try.
It's only a piece about an inch maybe not even starting at the tail and coming up. So basically he shed from head all the way down to the tail except fo an inch or so... It's not that much. Thx for the input