"Tears" in meshes

Bug Reports Studio Bugs
,
1

When importing models with rather higher topology sometimes random pieces get removed from the model

image_2025-06-21_222730741
image_2025-06-21_222730741812Ă—955 36 KB

System information:
AMD 7900x3d
32 GB
RTX 3080 Ti

PS: I was testing how the model will look like with R6 inside it, so the reproduction file only includes a few meshes)
AH-64 Apachetest2.fbx (170.8 KB)

A private message is associated with this bug report

1 Like
2

Are the normals in those parts alright?

3

how many tris is your mesh?

4

Yes, i checked that first, they are how they should be, even the option “doublesided” is on in the picture, yet the holes are there

5

The seat 3 thousand (bad topology i know, i needed to see how it looks in studio)

6

Have you tried setting the RenderFidelity to Precise in the Properties tab? That would be my best guess!

7

I tried but the same thing, i have RenderFidelity on Precise always and even CollisionFidelity on PreciseConvexDecomposition wont fix it
also just noticed even the 100 triangle chair thing has missing faces

8

so it doesnt apply to high triangle meshes but rather all

9

Hello,

This is a weird bug that you’re experiencing… I’ll ask you some questions that can help Roblox engineers in case they see this post sooner or later:

  1. Is it possible to share the reproduction steps? What feature did you use to import this 3D asset? Do you have any Roblox Studio Beta Features enabled?
  2. When making the model in the 3D software app, which can be Blender, did you check for any duplicated vertices at the same position? If not, make sure to select everything by pressing A through Edit Mode; Press M and select the option “Merge by Distance”. It will remove redundant vertices of the topology.
10

It might not be from roblox. check your model in blender, try with every lighting type, material, and others

11

  1. Imported it using the “Import 3D” tool on top of the screen, from blender exported as FBX
    I have “Haptic Effects”, “Import Queue”, “Incremental typechecking and autocompletion in studio”, “Preferred text size setting”, “Texture Generator” and “UIDragDetectors” enabled as beta features

  2. I didn’t, though i tried and it removed 0 vertecies, so no duplicated vertecies

12

sorry but i got little to no idea how to do that, i do my textures in studio, not in blender

13

FIXED

Solution: select every mesh in blender, go to edit mode, press A to select all and CTRL+T to triangulate the faces, somehow it fixes it