Problem in viewing meshes

Good night everyone, i've been working on making a few weapon packages for my server, but i have encountered a problem exporting .ukx files into .psk and .psa with UModel. The problem is that the .psk is exporting empty, there is no mesh at all and KFEd can´t import them. Is there any way to change the settings or make the model viewable? Does it have some kind of protection against exporting?



Also, in the Animation Browser it appears "lod 0 (1,#J)" on certain models, what does this mean?