Object becoming invisible Help me pls

Hello friends, how are you? can you help me? I made an object that has only one face, and when I take it to roblox studio it is invisible.

I already checked and the normal one is on the correct side and even activating the double sided it is not visible.

I can’t extrude this object, otherwise it will be heavy! Pls help me

this is a object in blender

Why will it be heavy? when you bring it into roblox make it massless.

Also, you can extrude it very thin… doesnt need much mass, and then also you can flatten in studio… but massless easiest way.

Is the object’s transparency set to 0?

Yes, transparency is set to 0. I do not know what to do

I can’t extrude, because if without extrusion it’s already 500 tris, when I extrude it gets 1k tris

What’s the part’s material and color in studio?

Maybe you’re seeing it from behind.

Material is plastic, and color is white

Why is 1k tris a problem? bring it into studio.

Try changing the color to black and see what happens.

nothing has changed, still the same

it’s actually 1500 tris, and there are three of these objects that I need to pass, and this object is just a small part of the final object

bring them separately, they will retain their location, not a problem.

also, there is a 10k limit per obj.

Yes, I’m bringing it separately, but it’s invisible just like

If its invisible then its not a closed object, you have to merge the triangle vertices, but this might deform the shape… try it though… Merge By Distance.

it is completely closed, I tried to export only one face of blender that comes by default and it was also invisible

Try doublesided on or copy same face opposite

Why not just make that into a Decal, then place 3 Parts with that Decal on them to make your object?

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