Painted fuzzy-skin crashes when slicing #703

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MrUnknownDE · 2026-04-05T16:26:31+02:00

MrUnknownDE commented

2026-04-05 16:26:31 +02:00

Originally created by @sharkovich on 2/18/2026

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.2-beta2

Operating System (OS)

Linux

OS Version

CatchyOS - rolling

Additional system information

Operating System: CachyOS Linux
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.2
Kernel Version: 6.19.0-2-cachyos (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 5800X 8-Core Processor
Memory: 48 GiB of RAM (46,9 GiB usable)
Graphics Processor: NVIDIA GeForce RTX 3080
Manufacturer: ASUS

Printer

Sovol Zero

How to reproduce

Open included 3mf file
Verify that paint on fuzzy skin is present on the model fron
Slice

Actual results

OrcaSlicer crashes.

Expected results

Model slices with applied fuzzy skin on the painted surfaces.

Project file & Debug log uploads

CLI logs show this line before crashing

/usr/include/c++/14.3.0/bits/stl_vector.h:1250: std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::back() [with _Tp = Slic3r::Algorithm::SplitLineJunction; _Alloc = std::allocator<Slic3r::Algorithm::SplitLineJunction>; reference = Slic3r::Algorithm::SplitLineJunction&]: Assertion '!this->empty()' failed.

logs.zip
project.zip

Checklist of files to include

Log file
Project file

Anything else?

No response

*Originally created by @sharkovich on 2/18/2026* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.2-beta2 ### Operating System (OS) Linux ### OS Version CatchyOS - rolling ### Additional system information Operating System: CachyOS Linux KDE Plasma Version: 6.5.5 KDE Frameworks Version: 6.22.0 Qt Version: 6.10.2 Kernel Version: 6.19.0-2-cachyos (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 5800X 8-Core Processor Memory: 48 GiB of RAM (46,9 GiB usable) Graphics Processor: NVIDIA GeForce RTX 3080 Manufacturer: ASUS ### Printer Sovol Zero ### How to reproduce 1. Open included 3mf file 2. Verify that paint on fuzzy skin is present on the model fron 3. Slice ### Actual results OrcaSlicer crashes. ### Expected results Model slices with applied fuzzy skin on the painted surfaces. ### Project file & Debug log uploads CLI logs show this line before crashing ``` /usr/include/c++/14.3.0/bits/stl_vector.h:1250: std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::back() [with _Tp = Slic3r::Algorithm::SplitLineJunction; _Alloc = std::allocator<Slic3r::Algorithm::SplitLineJunction>; reference = Slic3r::Algorithm::SplitLineJunction&]: Assertion '!this->empty()' failed. ``` [logs.zip](https://github.com/user-attachments/files/25398074/logs.zip) [project.zip](https://github.com/user-attachments/files/25398073/project.zip) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? _No response_

MrUnknownDE closed this issue

2026-04-05 16:26:31 +02:00

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Reference: github/OrcaSlicer#703