GCode Post-Processor encountered an invalid toolchange, maybe from a custom gcode

[halfcyan]

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 11 24H2

Additional system information

No response

Printer

Bambu Lab A1

How to reproduce

Slice files with AMS enabled

Actual results

I get an error stating the following:

[error]    2024-12-27 15:55:19.151128[Thread 0x00002854]:GCode Post-Processor encountered an invalid toolchange, maybe from a custom gcode:
> T1000
Generated M104 lines may be incorrect.

When I print any file that has filament changes during the print, the print gets soft locked (shows as having no issue) because the hotend temperature reads as 0 degrees. This persists unless I take out the SD card and restart the printer. The same issue does not occur when using Bambu Studio

Expected results

Print should complete with the proper filament changes

Project file & Debug log uploads

Project file and log.zip

Checklist of files to include

• Log file
• Project file

Anything else?

Attached is my printer profile if you want to check settings
Bambu Lab A1 0.4 nozzle.zip

[halfcyan]

Turns out this is because single extruder multi-material got turned off in the printer profile config. I wonder if there should be a popup asking if you want to enable it if the slicer detects your printer has an AMS connected or it just disables the AMS.