Unresponsive UI and potential memory leak with many Modifiers on single object #2094

New Issue

MrUnknownDE · 2026-04-05T23:37:21+02:00

MrUnknownDE commented

2026-04-05 23:37:21 +02:00

Originally created by @dualite2 on 9/23/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.0

Operating System (OS)

Windows, macOS

OS Version

Windows 11, Mac OS X Ventura

Additional system information

Same issue on :

Os X Ventura (mac min intel i5 64Go ram Intel UHD Graphics )
Windows 11 (Intel i7 9850H 32Go ram, Nvidia Quadro RTX3000).

Probably OS / Hardware independent.

Printer

Qidi X-Max 0.6 nozzle

How to reproduce

Load the project file (plaque_test.3mf) containing the object and modifier
Go to Prepare > Objects list > Plate 1 > "plaque_test.STEP"
Select the last 5 Modifiers (s30f50, ... s70f50)
Ctrl + C, Ctrl + V for duplicating the selected one

If the UI not freezing make another try with 5 more duplicates.
Same steps and result with mac Os X (replace Ctrl + ... by Cmd + ...)

Actual results

Ui unresponsive and memory always increasing.

Expected results

Modifier duplicated appears without freezing the UI.

Project file & Debug log uploads

test ironing.zip

debug_Tue_Sep_23_07_01_50_95636.log.0.zip

Checklist of files to include

Log file
Project file

Anything else?

I manually kill the app so probably nothing to see in log file.
The "Couldn't connect to server" is related to my firewall.

*Originally created by @dualite2 on 9/23/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.0 ### Operating System (OS) Windows, macOS ### OS Version Windows 11, Mac OS X Ventura ### Additional system information Same issue on : - Os X Ventura (mac min intel i5 64Go ram Intel UHD Graphics ) - Windows 11 (Intel i7 9850H 32Go ram, Nvidia Quadro RTX3000). Probably OS / Hardware independent. ### Printer Qidi X-Max 0.6 nozzle ### How to reproduce 1. Load the project file (plaque_test.3mf) containing the object and modifier 2. Go to Prepare > Objects list > Plate 1 > "plaque_test.STEP" 3. Select the last 5 Modifiers (s30f50, ... s70f50) 4. Ctrl + C, Ctrl + V for duplicating the selected one If the UI not freezing make another try with 5 more duplicates. Same steps and result with mac Os X (replace Ctrl + ... by Cmd + ...) ### Actual results Ui unresponsive and memory always increasing. ### Expected results Modifier duplicated appears without freezing the UI. ### Project file & Debug log uploads [test ironing.zip](https://github.com/user-attachments/files/22485353/test.ironing.zip) [debug_Tue_Sep_23_07_01_50_95636.log.0.zip](https://github.com/user-attachments/files/22485401/debug_Tue_Sep_23_07_01_50_95636.log.0.zip) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? I manually kill the app so probably nothing to see in log file. The "Couldn't connect to server" is related to my firewall.

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 bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug 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#2094