CRASH on MacOS in 10-15sec after start if there're offline printers in LAN mode #2189

New Issue

MrUnknownDE · 2026-04-06T01:21:08+02:00

MrUnknownDE commented

2026-04-06 01:21:08 +02:00

Originally created by @darklion84 on 9/15/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.0 (2.3.1 beta is also affected)

Operating System (OS)

macOS

OS Version

15.6.1 (24G90)

Additional system information

Macbook Air 2024 M4 16Gb 13"
same issue on Mac Mini M4 16Gb with the same Mac OS.

Printer

Bambu Lab P1S

How to reproduce

Have at least 2 printers in LAN mode. First one in the list should be offline,

Open any project, slice it
Click "Print" - choose printer form appeared.
Here first printer in the list is offline (BambuLab P1S in my case)
Now choose another printer which is online (BambuLab A1 mini in my case) and click print.

Actual results

In 2-3 seconds app will crash. 90% even before sending job is finished. Sometimes job can be sent and app crash after it.

Now reopen app, confirm "reopen" previous crashed project. Then go to the Device page. It also has offline printer as first one. And will show "Printer is offline blabla" error. But even if you'll try to switch to the online printer in the list - app will crash again.

Expected results

App will correctly understand that the current printer is offline and will not crash giving a possibility to choose another printer.

Project file & Debug log uploads

UE_V2_M_horizontal.3mf.zip

Archive-logs.zip

Checklist of files to include

Log file
Project file

Anything else?

All this happens every time. And will not stop crashing before I will turn on the offline printer.

*Originally created by @darklion84 on 9/15/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.0 (2.3.1 beta is also affected) ### Operating System (OS) macOS ### OS Version 15.6.1 (24G90) ### Additional system information Macbook Air 2024 M4 16Gb 13" same issue on Mac Mini M4 16Gb with the same Mac OS. ### Printer Bambu Lab P1S ### How to reproduce Have at least 2 printers in LAN mode. First one in the list should be offline, 1. Open any project, slice it 2. Click "Print" - choose printer form appeared. Here first printer in the list is offline (BambuLab P1S in my case) 3. Now choose another printer which is online (BambuLab A1 mini in my case) and click print. ### Actual results In 2-3 seconds app will crash. 90% even before sending job is finished. Sometimes job can be sent and app crash after it. Now reopen app, confirm "reopen" previous crashed project. Then go to the Device page. It also has offline printer as first one. And will show "Printer is offline blabla" error. But even if you'll try to switch to the online printer in the list - app will crash again. ### Expected results App will correctly understand that the current printer is offline and will not crash giving a possibility to choose another printer. ### Project file & Debug log uploads [UE_V2_M_horizontal.3mf.zip](https://github.com/user-attachments/files/22332064/UE_V2_M_horizontal.3mf.zip) [Archive-logs.zip](https://github.com/user-attachments/files/22332079/Archive-logs.zip) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? All this happens every time. And will not stop crashing before I will turn on the offline printer.

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Due Date

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Dependencies

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Reference: github/OrcaSlicer#2189