# "Internal error on command: "Z\_TILT\_ADJUST""

**URL:** <https://klipper.discourse.group/t/internal-error-on-command-z-tilt-adjust/25567>\
**Category:** General Discussion\
**Created:** [January 29, 2026, 12:15am UTC](https://klipper.discourse.group/t/internal-error-on-command-z-tilt-adjust/25567 "2026-01-29T00:15:40Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bruce356](https://avatars.discourse-cdn.com/v4/letter/b/d78d45/32.png) [@bruce356](https://klipper.discourse.group/u/bruce356)\
**Post date:** [January 29, 2026, 12:15am UTC](https://klipper.discourse.group/t/internal-error-on-command-z-tilt-adjust/25567/1 "2026-01-29T00:15:40Z")

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### Basic Information:

Printer Model: Voron Trident 350 bed  
 MCU / Printerboard: Bigtreetech Octopus pro v1.1  
 Host / SBC Raspberry Pi v4  
 klippy.log klippy\_logs.rar

_Fill out above information and_ _ **in all cases attach your** _ **`klippy.log` _file_** (use zip to compress it, if too big). _Pasting your_ `printer.cfg` _is **not** needed_  
_ **Be sure to check our “Knowledge Base” Category first. Most relevant items, e.g. error messages, are covered there** _

### Describe your issue: When upgrading from klipper v0.13.0-152 to v0.13.0-504 and implementing a Z\_TILT\_ADJUST the printer (Voron Trident 350) errors out with message - Internal error on command:“Z\_TILT\_ADJUST”. The printer shuts down and has to be reset (firmware reset).

Have tested various versions of Klipper from v0.13.0-152 to v0.13.0-475 (I use kiauh) and these versions all work normally. Things start failing with “Z\_TILT\_ADJUST” from v0.13.0-476 onwards.

When implementing Z\_TILT\_ADJUST with v0.13.0-476 the toolhead moves to the first probing position and the bed begins to move up and printer shuts down.

When implementing Z\_TILT\_ADJUST with v0.13.0-504 the toolhead does not move and the printer shuts down instantly.

The Trident has RPi-4, Bigtreetech Octopus pro v1.1, BTT EBB SB2240 Can v1.0 for Stealthburner, BTT U2C v2.1, Cartographer v3.0.

Thanks.

…

[klippy\_logs.zip](https://klipper.discourse.group/uploads/short-url/s7ybyBQzTrkMiO5RXc085wJRpHH.zip) (187.1 KB)

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**Author:** ![nefelim4ag](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/nefelim4ag/32/2387_2.png) [@nefelim4ag](https://klipper.discourse.group/u/nefelim4ag)\
**Post date:** [January 29, 2026, 12:46am UTC](https://klipper.discourse.group/t/internal-error-on-command-z-tilt-adjust/25567/2 "2026-01-29T00:46:28Z")

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You have a cartographer.

> [@Quad\_gantry\_level error](https://klipper.discourse.group/t/quad-gantry-level-error/25559/3):
>
> Recent updates have changed the internal code. All external custom probe extensions are broken until their authors can update them. (at least Eddy-ng, Carto, Beacon). You can either flash the Carto board with the mainline Klipper and, by so doing, remove the custom extension, or rollback and wait for the Carto code to update. Hope that helps. -Timofey.

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/klipper/original/1X/64419bf2aac6639e6ef5cef200dcd456b0a01ac3.png) [@system](https://klipper.discourse.group/u/system)\
**Post date:** [March 30, 2026, 12:46am UTC](https://klipper.discourse.group/t/internal-error-on-command-z-tilt-adjust/25567/3 "2026-03-30T00:46:50Z")

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