Blender Importing

Hi, I try to make an extruded letter in Blender and import it into Unity. I hope to add juice with 3D letters. (I use comic sans, haters gonna hate). However when I export my letter and import into Unity I get the result in the attachment. What do I do wrong?
I tried importing blender file directly, it also imports same way.

1267094--56109--$Original.PNG1267094--56110--$problem.PNG

Ok, I solved the problem. I had invisible items in the scene which I had not drawn. I deleted them and import works now.1267108--56112--$cause_of_problem.PNG

1267094--56110--$problem.PNG