Parts of mesh disappear, hard to explain

Can anyone explain why my mesh is doing this? I’m new to 3d modeling and when i look at my mesh part of it disappear on the side i’m looking at and appear on the other and vice versa.

Try to use the appearance option DoubleSided, enable it, and see if that works.

In rb studio? Or blender? This is a very confusing thing being new to 3d modeling.

Okay, yeah it worked, thank you!

In Roblox Studio, I think that’s the easiest option.