my friend is trying to upload a model, and it looks fine in blender but when uploaded into tower unite he looks like an evil pink freak 
any tips or help is appreciated :3 x
one thing to try is to select the model in object mode and hit ctrl+a then sellect all transforms before exporting
second for the textures you need to rename them in your folder [whatever the slot name is]_diffuse
you can rename it in blender or just rename the file in your explorer but you MUST have the texture and the dae / fbx file in the same folder.
example
Also if you havent seen it yet heres the link to the official workshop SDK which gives step by step guide to editing your model for tower and some troubleshooting tips
I want to play as the pink evil freak