For my custom dimension that I created, I found some major problems that seemed to not be fixable upon the apparent time. The dimension itself did not have any issues, but the portal did. When I entered the portal to my custom dimension, I came out in a solid block around 15 or so blocks away from the portal... This would not work well for a mod, since coming out in a solid block is not good news.
Any help or suggestions would be appreciated :)