Question Black particles when using the Mesh Renderer

Hello!

I've been trying to play with the particle system for a bit on a mesh I made on Blender. I tried having it emit from a mesh, and succesfully did so in a way. My issue is that when using particle materials the particles becomes totally black.

Here's what I did to maybe make it better to understand:

-brought an object from blender I created into unity
-unpacked it
-created a particle system
-change the material to a Standart unlit
-changed shape to mesh renderer
-selected my object
-particles switch to black

i tried to unparent the specific object I was trying to make it emit from, still no result.

The mesh renderer does work with cubes created inside Unity, which does make me question if I should ask this here or Blender. I'm sorry if this is the wrong place, but I thought that it might be more of a Unity setup problem.

Thank you for your time!

 

Edit #1: It seems to happen with every single "disk" like shapes for some reason. Created a sphere, flattened it and tried again. Same result.