Variable Layer Height automatic setting just sets default height for all layers under certain conditions #1771

New Issue

MrUnknownDE · 2026-04-05T19:45:13+02:00

MrUnknownDE commented

2026-04-05 19:45:13 +02:00

Originally created by @ninjamida on 10/31/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.1

Operating System (OS)

Windows

OS Version

Windows 11

Additional system information

ROG Ally X, stock configuration (Ryzen Z1 Extreme, 24GB RAM, 1TB SSD) with external monitor / keyboard / mouse

Printer

Flashforge AD5X

How to reproduce

Situation 1

Load an STL file into Orca.
Make some changes to the STL file, then use "Reload from disk" in Orca.
Automatic variable layer height will no longer work correctly for the entire model.
Saving and reloading the 3MF file will fix it.

Situation 2

Load an STL file into Orca.
Apply a height range modifier to this STL.
Automatic variable layer height will no longer work correctly for the section of the model covered by the height range modifier. The only workaround is to remove the modifier altogether while applying the variable layer heights.

In both cases, existing variable layer height data (whether automatic or manual) is preserved, but cannot be edited.

Actual results

See above.

Expected results

Everything should function the same way it does without these "trigger steps" being taken.

Project file & Debug log uploads

N/A - this is a general issue not specific to any project / file.

Checklist of files to include

Log file
Project file

Anything else?

No response

*Originally created by @ninjamida on 10/31/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.1 ### Operating System (OS) Windows ### OS Version Windows 11 ### Additional system information ROG Ally X, stock configuration (Ryzen Z1 Extreme, 24GB RAM, 1TB SSD) with external monitor / keyboard / mouse ### Printer Flashforge AD5X ### How to reproduce **Situation 1** 1. Load an STL file into Orca. 2. Make some changes to the STL file, then use "Reload from disk" in Orca. 3. Automatic variable layer height will no longer work correctly for the entire model. 4. Saving and reloading the 3MF file will fix it. **Situation 2** 1. Load an STL file into Orca. 2. Apply a height range modifier to this STL. 3. Automatic variable layer height will no longer work correctly for the section of the model covered by the height range modifier. The only workaround is to remove the modifier altogether while applying the variable layer heights. In both cases, existing variable layer height data (whether automatic or manual) is preserved, but cannot be edited. ### Actual results See above. ### Expected results Everything should function the same way it does without these "trigger steps" being taken. ### Project file & Debug log uploads N/A - this is a general issue not specific to any project / file. ### Checklist of files to include - [ ] Log file - [ ] Project file ### Anything else? _No response_

Sign in to join this conversation.

No Label bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug

1 Participants

Notifications

Due Date

No due date set.

Dependencies

No dependencies set.

Reference: github/OrcaSlicer#1771