When developing color film at home, one can come into many different defects and errors. The development of color film requires good temperature monitoring and development timing. If you're just beginning to develop your own film, do not be discouraged when you get bad results. It's a learning process and not every roll of film is going to be the same.
Check out this website below! It includes some examples of the results you may get when developing your own film, and the possible cause of each result. The website was very helpful to me when I began developing my own film. It also helps for those who mail-in their film because it gives them an idea of why their prints are looking quite strange. Sometimes the camera is faulty, and other times it's the film development process.