[Bug] Crash on Connection Failure (Code -1) and Autosave Failure – macOS #529

New Issue

MrUnknownDE · 2026-04-05T16:22:19+02:00

MrUnknownDE commented

2026-04-05 16:22:19 +02:00

Originally created by @JustNotesa on 3/1/2026

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.1

Operating System (OS)

macOS

OS Version

15

Additional system information

On macOS, attempting to connect to a P1S printer results in a connection error (Connect P1S [Name] failed! [SN:..., code=-1]). Clicking "OK" on this error message causes the entire application to crash.

Furthermore, the autosave functionality is not working, leading to total data loss after the crash!

Printer

P1P

How to reproduce

Open the software on macOS.
Attempt to connect to a Bambu Lab P1P printer.
Wait for the error message: Connect P1P failed! [SN:..., code=-1].
Click "OK".
The application closes unexpectedly (crash).

Actual results

The application closes unexpectedly (crash).

Expected results

The software should handle the connection error gracefully without crashing.
Autosave should reliably preserve the project state to prevent data loss in case of a crash.

Project file & Debug log uploads

example.3mf.zip

Checklist of files to include

Log file
Project file

Anything else?

No response

*Originally created by @JustNotesa on 3/1/2026* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.1 ### Operating System (OS) macOS ### OS Version 15 ### Additional system information On macOS, attempting to connect to a P1S printer results in a connection error (Connect P1S [Name] failed! [SN:..., code=-1]). Clicking "OK" on this error message causes the entire application to crash. Furthermore, the autosave functionality is not working, leading to total data loss after the crash! ### Printer P1P ### How to reproduce Open the software on macOS. Attempt to connect to a Bambu Lab P1P printer. Wait for the error message: Connect P1P failed! [SN:..., code=-1]. Click "OK". The application closes unexpectedly (crash). ### Actual results The application closes unexpectedly (crash). ### Expected results The software should handle the connection error gracefully without crashing. Autosave should reliably preserve the project state to prevent data loss in case of a crash. ### Project file & Debug log uploads [example.3mf.zip](https://github.com/user-attachments/files/25663666/example.3mf.zip) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? _No response_

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Reference: github/OrcaSlicer#529