macOS: 3mf project files closing immediately when opened from Finder #1552

New Issue

MrUnknownDE · 2026-04-05T18:21:06+02:00

MrUnknownDE commented

2026-04-05 18:21:06 +02:00

Originally created by @SpecMode on 11/21/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.2-dev (3a7309a)

Operating System (OS)

macOS

OS Version

26.1 (25B78)

Additional system information

CPU: M3 Max
Memory: 128 GB

Printer

Bambu Lab H2D

How to reproduce

With OrcaSlicer.app closed, open a 3mf project file from the Finder (either with .3mf set to open with OrcaSlicer by default, or by right-clicking and selecting Open With –> OrcaSlicer.app
Wait for OrcaSlicer to launch and open the 3mf project file

Actual results

The project file loads, displays in the Prepare tab's preview momentarily, and then the view reverts to a blank build plate with the project file no longer open (as validated from the Project tab).

Expected results

The project opens normally and can be previewed, sliced, and printed.

Project file & Debug log uploads

one-rupee_orcatest.3mf.zip

debug_Fri_Nov_21_13_24_38_2122.log.0.zip

Checklist of files to include

Log file
Project file

Anything else?

Screen recording of issue: https://github.com/user-attachments/assets/a81f664d-7fd8-4e85-804e-4679137aff52

Opening project files from File –> Open Project... is not affected by this issue — only opening them from the Finder.

This does not appear to be a permissions-related issue as the project file does initially load and display before closing, and additionally, OrcaSlicer.app has been granted Full Disk Access permissions in System Settings –> Privacy & Security.

*Originally created by @SpecMode on 11/21/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.2-dev (3a7309a) ### Operating System (OS) macOS ### OS Version 26.1 (25B78) ### Additional system information CPU: M3 Max Memory: 128 GB ### Printer Bambu Lab H2D ### How to reproduce 1. With OrcaSlicer.app closed, open a 3mf project file from the Finder (either with .3mf set to open with OrcaSlicer by default, or by right-clicking and selecting Open With –> OrcaSlicer.app 2. Wait for OrcaSlicer to launch and open the 3mf project file ### Actual results The project file loads, displays in the Prepare tab's preview momentarily, and then the view reverts to a blank build plate with the project file no longer open (as validated from the Project tab). ### Expected results The project opens normally and can be previewed, sliced, and printed. ### Project file & Debug log uploads [one-rupee_orcatest.3mf.zip](https://github.com/user-attachments/files/23684520/one-rupee_orcatest.3mf.zip) [debug_Fri_Nov_21_13_24_38_2122.log.0.zip](https://github.com/user-attachments/files/23684522/debug_Fri_Nov_21_13_24_38_2122.log.0.zip) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? Screen recording of issue: https://github.com/user-attachments/assets/a81f664d-7fd8-4e85-804e-4679137aff52 Opening project files from File –> Open Project... is _not_ affected by this issue — only opening them from the Finder. This does not appear to be a permissions-related issue as the project file does initially load and display before closing, and additionally, OrcaSlicer.app has been granted Full Disk Access permissions in System Settings –> Privacy & Security.

MrUnknownDE closed this issue

2026-04-05 18:21:06 +02:00

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Reference: github/OrcaSlicer#1552