In Blender, I made a model and baked the textures into a single image. It works great in Blender.
I imported my model as an .fbx into Unity, and then dragged in its image texture material.
For some reason, the image texture won't "line up" where it's supposed to go! I've watched a lot of YouTube tutorials and this is exactly what they tell us to do, so what could be the reason it's not working for me?