Crash on slice when using multiple materials #577

New Issue

MrUnknownDE · 2026-04-05T16:23:07+02:00

MrUnknownDE commented

2026-04-05 16:23:07 +02:00

Originally created by @robotfishe on 2/27/2026

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

Bazzite (Fedora)

Additional system information

AMD Ryzen 5900X, Nvidia 4070Ti

Printer

VzBot 235

How to reproduce

Import a model and either:
a) use painting to add multiple colours/filaments to that model
or
b) add a second model and set it to a different colour/filament

Actual results

Slicing proceeds as far as 80% ("generating g-code"), hangs there for ~30 seconds, then the program closes.

Expected results

Slicing should finish and application should not crash.

Project file & Debug log uploads

Archive.zip

Checklist of files to include

Log file
Project file

Anything else?

The above issue only happens for me on the Flatpak version. I have tried the AppImage and it finishes slicing just fine.

*Originally created by @robotfishe on 2/27/2026* ### 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 Bazzite (Fedora) ### Additional system information AMD Ryzen 5900X, Nvidia 4070Ti ### Printer VzBot 235 ### How to reproduce Import a model and either: a) use painting to add multiple colours/filaments to that model or b) add a second model and set it to a different colour/filament ### Actual results Slicing proceeds as far as 80% ("generating g-code"), hangs there for ~30 seconds, then the program closes. ### Expected results Slicing should finish and application should not crash. ### Project file & Debug log uploads [Archive.zip](https://github.com/user-attachments/files/25603781/Archive.zip) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? The above issue only happens for me on the Flatpak version. I have tried the AppImage and it finishes slicing just fine.

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Reference: github/OrcaSlicer#577