Textures are not showing in Unreal when I import from Maya

Hi all,
I’m new to Unreal and I was trying to import an object which was already textured from Maya. I used Substance painter to texture and then applied the textures using Stingray. But when I export my object to Unreal, it shows just fine but the textures are far from what i want them to be.
For instance, my object in Maya-Substance is gold-white but in Unreal it shows purple.
What is the cause of this problem? Or does Unreal not support Stingray?
Thanks in advance