Crash in Flatpak when paint-on fuzzy skin is used #1425

New Issue

MrUnknownDE · 2026-04-05T17:42:36+02:00

MrUnknownDE commented

2026-04-05 17:42:36 +02:00

Originally created by @TomPcz on 12/4/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.2-dev (latest OrcaSlicer-Linux-flatpak_nightly_x86_64.flatpak)

Operating System (OS)

Linux

OS Version

openSUSE Tumbleweed

Additional system information

No response

Printer

Voron 2.4

How to reproduce

Open attached project
Slice plate
OrcaSlicer crashes with the following error in terminal:
/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.

When I disable fuzzy skin, it does not crash. On most models, it does not crash. Nevertheless, this is not the only model where it crashes. It is a bit random.

Actual results

OrcaSlicer crashes completely.

Expected results

Do not crash.

Project file & Debug log uploads

log
project

Checklist of files to include

Log file
Project file

Anything else?

No response

*Originally created by @TomPcz on 12/4/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.2-dev (latest OrcaSlicer-Linux-flatpak_nightly_x86_64.flatpak) ### Operating System (OS) Linux ### OS Version openSUSE Tumbleweed ### Additional system information _No response_ ### Printer Voron 2.4 ### How to reproduce 1. Open attached project 2. Slice plate 3. OrcaSlicer crashes with the following error in terminal: `/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. ` When I disable fuzzy skin, it does not crash. On most models, it does not crash. Nevertheless, this is not the only model where it crashes. It is a bit random. ### Actual results OrcaSlicer crashes completely. ### Expected results Do not crash. ### Project file & Debug log uploads [log](https://github.com/user-attachments/files/23927653/debug_Thu_Dec_04_10_08_53_2.log) [project](https://github.com/user-attachments/files/23927656/project.zip) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? _No response_

MrUnknownDE closed this issue

2026-04-05 17:42:36 +02:00

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Reference: github/OrcaSlicer#1425