Faces being flipped for some reason?

[pug6_4]

Alright, so i ran into an issue with a placement system i’ve been trying to make,

Creating A Furniture Placement System

This guide was originally written for scriptinghelpers . The original can be found here . One of the most common requests I get for blog post topics are for a decoration placement system that saves. I’ve shied away from this topic in the past as there is no singular “correct” way to do it. That being said, I think it’s a good exercise for all game devs to go through and will potentially place a role in a future blog post I plan to write. In addition to change things up, I’ll also take the ti…

Following this tutorial, although i don’t believe the issue is caused by it, i thought it might be a good detail.

As you can see, the mesh is completely fine.

But when i use the “outline” with it, everything inside the model gets flipped.
Although i can turn on double sided, it would look fine. Only downside being that the green part gets flipped, (litteraly a normal part, i have no idea how this is possible.)
Is this a bug?

Or could this cause the issue?

[pug6_4]

I found a soloution, for some reason the CFrame that was returned from Placement:CalcPlacementCFrame() was flipping the normals, decided on turning it into a vector3 and then into a cframe again and adding the rotation after, for some reason this happened and it was strange.