Sword Model turned into a Missing Textured Block

[Type]

So, just the other day I created a sword in Cubik Studio, everything was going well and I finished after applying the textures and such and I exported the model to Minecraft, but when I put the model in hand and tested it out, it was a pink/Black Block. Below I have attached images to what the model looks like in Cubik/Preview and what it looks like in Minecraft. If I should give any further explaining, just reply with questions or a solution to this problem. This project I'm doing it paid, so I would love someone to respond asap. Don't want to upset the customer

[Geenium]

Without having any of the files it's difficult to know what's wrong.

I'm going to guess that the reason the sword is rotated at an angle is because it didn't fit into the 3x3 area when it wasn't rotated. If this is the case minecraft doesn't accept these models, for whatever reason, your model needs to fit inside the 3x3 area when it's not rotated first or it won't work.