At the moment the game is in a test version (alpha phase if I remember right).
Like all softwares in this phase, testing is the way for finding and fixing bugs.
It is pretty normal that there are, because everything is newly done, and often, the things that are preexisting are changed because they can be done in a better way.
Planeshift is moving toward adding new features, and trying to stabilize the game as much as possible!
Help the implementors to find the bugs and it will be even more stable :-)