❓ Why does my glass model look fine in Blender but break in Unreal Engine?

Hey everyone,
I modeled and shaded a glass object in Blender (screenshot 1) and it looks perfect — clean normals, solid shading, and realistic refraction using a glass BSDF.

But when I export the model as FBX and import into Unreal Engine 5, apply a glass material (using Translucent / Thin Translucent), the result is completely messed up — strange artifacts and wavy reflections (screenshot 2). It looks gross and broken.

blender

unreal