2D pixel problem

I am using Graphic by Autodesk to create my 2d assets. I created a 64x64 pixel Sapphire ore in vector graphics and exported to my dropbox as a png file. When I go to use it in unreal 4 it keeps being a 16x16 pixel art and becoming pixelated. I’m stumped. Any suggestions?f49c2fb5e36fe44934a57703235dce4d9ca2b018.png