The health "bug" was a debugging code that made it into the alpha version. The 2.1.1 doesn't have it. Dude had set it to change the health to 10/20 (or whatever a half is) whenever it executes, which apparently was on teleporting, login and maybe a couple other times. I found it humorous that the WorldEdit compass teleport triggered it. Unless I'm incorrect, the only thing we're waiting on is a conversion tool (that works) from the 1.x format to the 2.x.