Orca Slicer cannot find geometry in projects it saved when re-opening later #1584

New Issue

MrUnknownDE · 2026-04-05T18:31:01+02:00

MrUnknownDE commented

2026-04-05 18:31:01 +02:00

Originally created by @nickr1957 on 11/18/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.2.0

Operating System (OS)

Windows

OS Version

Windows 10 and 11

Additional system information

See capture attached

Printer

P1S/X1C

How to reproduce

Open a .stp file in OrcaSlicer
Set profiles to use
Save the new project as .3mf
Close OrecaSlicer
Open OrcaSlicer
Go to File->Open Project
Select the .3mf file just saved
OrcaSlicer throws a warning that there is no geometry in the .3mf
Click Yes
Bland single plate opens with no objects

Actual results

See screenshots.
An error window opens immediately followed by another on top of it. Dismissing the topmost shows the first underneath.
Clicking yes opens a blank plate

Expected results

Open the project as it always has until today

Project file & Debug log uploads

Project file

parametric-canteliever-box-v for ink.zip

Logs

Combined logs.zip

Checklist of files to include

Log file
Project file

Anything else?

No response

*Originally created by @nickr1957 on 11/18/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.2.0 ### Operating System (OS) Windows ### OS Version Windows 10 and 11 ### Additional system information See capture attached ![Image](https://github.com/user-attachments/assets/6c814f0a-b9f2-4701-a947-9616efbcbd13) ### Printer P1S/X1C ### How to reproduce 1. Open a .stp file in OrcaSlicer 2. Set profiles to use 3. Save the new project as .3mf 4. Close OrecaSlicer 5. Open OrcaSlicer 6. Go to File->Open Project 7. Select the .3mf file just saved 8. OrcaSlicer throws a warning that there is no geometry in the .3mf 9. Click Yes 10. Bland single plate opens with no objects 11. ### Actual results See screenshots. An error window opens immediately followed by another on top of it. Dismissing the topmost shows the first underneath. Clicking yes opens a blank plate ![Image](https://github.com/user-attachments/assets/3f748c77-d9d3-4c6b-8eed-c8007ebdcb8c) ![Image](https://github.com/user-attachments/assets/93b502d6-b879-4094-9d3c-422c31b3d89d) ### Expected results Open the project as it always has until today ### Project file & Debug log uploads Project file [parametric-canteliever-box-v for ink.zip](https://github.com/user-attachments/files/23609119/parametric-canteliever-box-v.for.ink.zip) Logs [Combined logs.zip](https://github.com/user-attachments/files/23609147/Combined.logs.zip) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? _No response_

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Due Date

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Dependencies

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Reference: github/OrcaSlicer#1584