Not queuing T2, that tool doesn't exist

What is the problem?

Not queuing T2, that tool doesn't exist
"Not queuing T2, that tool doesn't exist according to the printer profile or was reported as invalid by the firmware. Make sure your printer profile is set up correctly."

What did you already try to solve it?

Reinstall Octoprint and change every parametrs as it need to be

Have you tried running in safe mode?


Did running in safe mode solve the problem?


Systeminfo Bundle (38.9 KB)


Additional information about your setup

OctoPrint version Version 1.7.3
OctoPi version Version 0.18.0
Printer Mega Zero V1
Firmware official
Browser Opera
Operating system Windows 11 Home


Hello @TheBlack99 !

When does this error appear?

HI! @Ewald_Ikemann !
It shows total Random but only when printer is printing.

The printer just has one extruder.

You may check your slicer if there are more than one extruder are set up.

Nope it is only one

Can you share the the zipped gcode file that failes.

Also you may enable serial.log and after a print attempt please share the serial.log.

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