Strange Message - how to solve this? "The Filament Track switch....."

user_3392317948 · May 12, 2026, 12:45pm

every time i see the following message after slicing

“The Filament Track switch installed on the Printer does not match the slicing file.Please re-slice to avoid print quality issues”

How i can get rid of this?

ishu · May 12, 2026, 12:56pm

Try to sync info on bambu studio

user_3283807718 · May 12, 2026, 1:09pm

i get this Message, too. Printer is synced.

My program version is 2.6.1.55 (beta).

user_3392317948 · May 12, 2026, 1:22pm

did all possibilities to sync - it´s on the “normal” version and in the new beta.

tomsky999 · May 12, 2026, 2:21pm

Pretty sure its just a bug in the App, i was getting the same before running a filament track switch and just ignored it

Mejero · May 13, 2026, 6:40pm

Is anyone else having the issue that when Dynamic Mapping is enabled and one nozzle is assigned multiple times, an error message appears saying:

“The diameter of the main nozzle (0.4 mm) does not match the diameter of the sliced model (0.0 mm, which obviously can’t be correct).”

Because of this, I can’t even start the print anymore.

Advocado · May 13, 2026, 6:59pm

Check the nozzle diameter on the printer.

Mejero · May 13, 2026, 7:04pm

Everything fine… everywhere its on 0.4mm and if i disable dynamic mapping (so every nozzle is assigned to 4 fixed filaments) it will work. But i want to activate it because it saves waste and time

ishu · May 14, 2026, 2:40pm

Are they all updated?

Dumb of me but you have the right printer selected right?

user_2426003524 · May 17, 2026, 6:21pm

I get this message every now and then as well. To fix it, I’ll run an automatic AMS detection at the printer. Then I sync Bambulab Studio and re-slice the project. I assume it is some sort of a bug or dementia on the printer side…

PrintSquad · May 18, 2026, 2:06am

We get this with every print and ignore it. Pretty annoying though.

user_3392317948 · May 18, 2026, 5:45am

yes annoying, strange that there is no statement from Bambu about this

xcell · June 13, 2026, 4:39am

I have the same problem. This message pops up every time I want to start printing: The Filament Track Switch installed on the printer does not match the slicing file.

How do I get rid of this message?

Loren42 · June 13, 2026, 11:53am

Probably busy with bigger fish.

user_3161299332 · June 15, 2026, 11:08pm

I am receiving the same message. I re-synced and re-sliced, but still got the same message. Has this ever caused any problems to your print or machine?

Loren42 · June 16, 2026, 1:02am

None. The message is a bug in the firmware.

Daan_007 · September 11, 2026, 10:09am

I had same issues also issues with feeding form an AMS. Filament was not getting through. Switching PTFE tubes from A–>B and B—>A did cost me a few prints.

Also not working when installed the TPU Feeder. When you want to use this one then you need to disconnect the Track Switch power. (6-pin)

Support is horrible from Bambu Lab. Turning in circles. I was done withit and decided to disconnect the track switch and trow it in the trash can. Seems Bambu Lab is more in supporting influencers then paying customers.