What is wrong with my material?

I used paint 3d to paint a model and turned it into an .fbx with blender. However, something strange is happening.
It works with the basic geometry shapes, but on the building it was made with it is just a solid color. I tried it on a free asset and it worked there, but in a different way than I expected, it made it more colorful but not splotchy like my texture… How do I Make it work with my building?

What I have:

258545-why.png

Intended result:

Your material seems fine, I would check the UVs of the mesh in the static mesh editor.