Halo CE Scenery Port Problems

[{TLS}Udie]

I PMI'd a bunker from CE, no problems there, HMT and HHT have no problems opening the map and veiwing the files, but when I tried to open it with Sparkedit, it gives me an Error message and closes. I don't understand whats happening, I've PMI'd plenty of stuff from CE, but I can't get this one to work.

[{TLS}Udie]

Is there no one that can help me?