Sounds like a very weird bug you're getting... maybe you could upload your copy of the UTI and I could take a look?
(By the way, I believe this is the wrong forum for this type of thing. This sounds more like a modding issue than a problem with KotOR tool, so instead of posting here you'd want to post in Holowan Laboratories
. Plus, more poeple go to Holowan so you're bound to receive more replies to your problem. Could a mod move this, please?)