Exaggerated overcounted vertices

Hi!
I’ve been modelling forniture for my mobile project in blender.
I’m actually importing my kitchen in UE to test its appearance and there are problems with the mesh I know it’s caused by the number of vertices of the mesh.

this is a SM in blender

It has 216 verts, thus there should be no problems at all with my mobile.
as I import the mesh into UE, this is the verts count

The number of vertices has blown up of almost a hundred times and this is the result if I simulate the mobile play.

I tried to triangulate the mesh in blender and export the file, but it doesn’t work
How can I avoid UE to ovetriangulate my mesh?

Yeah. I’ve made some test on simpler objects and found out blender exports also unapplied modifier and it takes the subdivision from the render value.
Shame on me!

As usually, I’ve found out the answer by myself. I’ve made some test on simpler objects and found out blender exports also unapplied modifier and it takes the subdivision from the render value.
Shame on me!

Hey, have you got any modifiers on your mesh in Blender? Maybe a Subdivision Surface modifier?