Color Painting seeps inside model and affects infill instead of only outer wall #2255

New Issue

MrUnknownDE · 2026-04-06T02:30:03+02:00

MrUnknownDE commented

2026-04-06 02:30:03 +02:00

Originally created by @tohega on 9/8/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.0 & 2.2.0

Operating System (OS)

Windows

OS Version

Windows 11

Additional system information

No response

Printer

Bambu Lab X1 Carbon

How to reproduce

Open OrcaSlicer 2.3
Load the handy model OrcaCube
Use Color Painting tool to paint a section on the outside wall only
Slice the model

Actual results

Painted area is not restricted to the outer wall.
The color seeping extends into inner walls and even infill regions.

https://github.com/user-attachments/assets/a3bd10c1-431f-417c-8401-0692f361e2c8
https://github.com/user-attachments/assets/0169d4a0-d747-438f-9b49-568c4621a08c

Expected results

Color Painting should only affect the outermost wall, as it did previously.
Inner walls and infill should remain unaffected(I swear I did this days ago with no issue)

Project file & Debug log uploads

log.zip

PaintBug.zip

Checklist of files to include

Log file
Project file

Anything else?

I strongly believe that some days ago this didnt happen, I might have changed some painting settings but I wouldnt know how

*Originally created by @tohega on 9/8/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.0 & 2.2.0 ### Operating System (OS) Windows ### OS Version Windows 11 ### Additional system information _No response_ ### Printer Bambu Lab X1 Carbon ### How to reproduce 1. Open OrcaSlicer 2.3 2. Load the handy model OrcaCube 3. Use Color Painting tool to paint a section on the outside wall only 4. Slice the model ### Actual results - Painted area is not restricted to the outer wall. - The color seeping extends into inner walls and even infill regions. https://github.com/user-attachments/assets/a3bd10c1-431f-417c-8401-0692f361e2c8 https://github.com/user-attachments/assets/0169d4a0-d747-438f-9b49-568c4621a08c ### Expected results - Color Painting should only affect the outermost wall, as it did previously. - Inner walls and infill should remain unaffected(I swear I did this days ago with no issue) ### Project file & Debug log uploads [log.zip](https://github.com/user-attachments/files/22211174/log.zip) [PaintBug.zip](https://github.com/user-attachments/files/22211183/PaintBug.zip) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? I strongly believe that some days ago this didnt happen, I might have changed some painting settings but I wouldnt know how

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Reference: github/OrcaSlicer#2255