Mesh is transparent when importing into studio

[GrandMarineLCS (Super Mario)]

Hello, i have been trying to import a rigged arm mesh into blender, but for some reason the arm is completely transparent, and i have no idea why.
Here is my mesh:

I have not modified the transparency of the mesh itself, here is proof:

I have checked the mesh on the roblox website, however it is still being approved by roblox.

Here is my mesh in blender:

I have asked other people on discord, and they say it’s a normals issue.

Help will be appreciated.

[VSCPlays (Void)]

I think you are in an alt account and the mesh is probably in moderation review

[GrandMarineLCS (Super Mario)]

No, i uploaded the mesh on this account i am using right now, i don’t think its an account issue

[GrandMarineLCS (Super Mario)]

UPDATE: It has been 1 day since i posted this problem, yet the mesh is still invisible:

[GrandMarineLCS (Super Mario)]

UPDATE: Someone told me to use the avatar import instead of the generic 3d mesh importer, and that worked.