Moving the dummy modifier changes object line types #1532

New Issue

MrUnknownDE · 2026-04-05T18:15:02+02:00

MrUnknownDE commented

2026-04-05 18:15:02 +02:00

Originally created by @bojanpotocnik on 11/23/2025

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

No response

Printer

Bambu X1C

How to reproduce

I added a model with a "dummy" modifier (modifies nothing), and the object is sliced correctly:

If I set the modifier to modify anything (e.g., increasing infill density by 1%), the bridge is detected as an overhang wall:

If I undo the modification or reset the modifier settings, the bridge is OK again.

But if I just move the modifier (no setting overrides), the bridge fails again. Moreover, the bridge is affected even if I move the modifier out of the object, but differently 😳

This causes print to fail due to printing mid-air

Actual results

The modifier object changes line type, even if no related settings are overridden, and even out of the modifier area.

Expected results

Changing unrelated settings (e.g. infill density) or just moving the modifier should not affect the slicing.

Project file & Debug log uploads

Holder.3mf.zip

Checklist of files to include

Log file
Project file

Anything else?

No response

*Originally created by @bojanpotocnik on 11/23/2025* ### 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 _No response_ ### Printer Bambu X1C ### How to reproduce I added a model with a "dummy" modifier (modifies nothing), and the object is sliced correctly: <img width="1863" height="1323" alt="Image" src="https://github.com/user-attachments/assets/d781232d-80f1-4ebc-96c8-768b6fc15bc1" /> <img width="1863" height="1323" alt="Image" src="https://github.com/user-attachments/assets/4bbf838b-f530-4506-8e6d-47f0ad9c06e1" /> If I set the modifier to modify anything (e.g., increasing infill density by 1%), the bridge is detected as an overhang wall: <img width="1863" height="1323" alt="Image" src="https://github.com/user-attachments/assets/88d81341-7ca8-480b-9532-48349cb70bc0" /> If I undo the modification or reset the modifier settings, the bridge is OK again. But if I just move the modifier (no setting overrides), the bridge fails again. Moreover, the bridge is affected even if I move the modifier out of the object, but differently 😳 <img width="1863" height="1323" alt="Image" src="https://github.com/user-attachments/assets/d3bd916d-c1cf-4a6c-bfbc-7cccfd9ffa07" /> <img width="1863" height="1323" alt="Image" src="https://github.com/user-attachments/assets/5d897d03-1387-47cd-a8b3-a2f6ea031415" /> This causes print to fail due to printing mid-air <img width="1863" height="1323" alt="Image" src="https://github.com/user-attachments/assets/427f34e3-4be2-42af-a36a-5e190f50d41a" /> ### Actual results The modifier object changes line type, even if no related settings are overridden, and even out of the modifier area. ### Expected results Changing unrelated settings (e.g. infill density) or just moving the modifier should not affect the slicing. ### Project file & Debug log uploads [Holder.3mf.zip](https://github.com/user-attachments/files/23697904/Holder.3mf.zip) ### Checklist of files to include - [ ] Log file - [x] 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

1 Participants

Notifications

Due Date

No due date set.

Dependencies

No dependencies set.

Reference: github/OrcaSlicer#1532