Launchbox crashes when adjusting category lists

[Salamonius]

So i am trying to edit my categories, Arcade, NES, etc. i am right clicking on the say "computer" category and going into the parent tab and selecting the the systems but i am "NOT" selecting the "computer" category when i hit ok it crashes on me every time. and it happens no matter what category i do this in. It's probably just me but i thought i would post it.