The only real bug (at least I don't think it's me, but you never know) that I've noticed with P5 is similar to this one - the hair I've created has a tendency to zero itself when I save the project. If I exit Poser, start it up again, and reopen the project, the hair is back in place (unlike yours). This was hair I had created on a skullcap, so it's a prop like Cousin It.