Manually edited AMS slot self-erases in a few seconds #2096

New Issue

MrUnknownDE · 2026-04-05T23:39:05+02:00

MrUnknownDE commented

2026-04-05 23:39:05 +02:00

Originally created by @lordbah on 9/22/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.1-beta

Operating System (OS)

Linux

OS Version

PopOS 22.04

Additional system information

https://github.com/user-attachments/assets/853dde26-7c7e-4810-bcde-9fbc125616f0

Printer

Bambu Lab P1S

How to reproduce

Put a non-RFID filament spool in an AMS slot. Manually tell OrcaSlicer what's in that slot. It displays fine for a few seconds, and then it self-erases.

Actual results

The slot self-erases.

amserase2.log

Expected results

When there is no RFID tag for a slot, so the printer doesn't know what filament is in that slot, periodic updates from the printer should not erase what the user has manually specified.

Project file & Debug log uploads

I think this log excerpt shows a periodic (every few seconds) update coming from the printer. For the first three slots in the tray lots of info is provided, but for the last slot only "id" is provided. I suspect OrcaSlicer is then just using defaults or something, when in my opinion it should be not altering whatever it had in its data structure before, i.e. what the user entered manually.

amserase.log

Checklist of files to include

Log file
Project file

Anything else?

What would be the proper thing to test for the absence of, to mean there is no RFID for this slot? tag_uid?
How can this be addressed without screwing up other printer models, other things performing the same function as AMS, etc.?

*Originally created by @lordbah on 9/22/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.1-beta ### Operating System (OS) Linux ### OS Version PopOS 22.04 ### Additional system information https://github.com/user-attachments/assets/853dde26-7c7e-4810-bcde-9fbc125616f0 ### Printer Bambu Lab P1S ### How to reproduce Put a non-RFID filament spool in an AMS slot. Manually tell OrcaSlicer what's in that slot. It displays fine for a few seconds, and then it self-erases. ### Actual results The slot self-erases. [amserase2.log](https://github.com/user-attachments/files/22480917/amserase2.log) ### Expected results When there is no RFID tag for a slot, so the printer doesn't know what filament is in that slot, periodic updates from the printer should not erase what the user has manually specified. ### Project file & Debug log uploads I think this log excerpt shows a periodic (every few seconds) update coming from the printer. For the first three slots in the tray lots of info is provided, but for the last slot only "id" is provided. I suspect OrcaSlicer is then just using defaults or something, when in my opinion it should be not altering whatever it had in its data structure before, i.e. what the user entered manually. [amserase.log](https://github.com/user-attachments/files/22480904/amserase.log) ### Checklist of files to include - [x] Log file - [ ] Project file ### Anything else? What would be the proper thing to test for the absence of, to mean there is no RFID for this slot? tag_uid? How can this be addressed without screwing up other printer models, other things performing the same function as AMS, etc.?

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Reference: github/OrcaSlicer#2096