Skip/Exclude object causes ~0.5mm layer shift on remaining objects (A1 Combo)

[AtmosphereZA]

Bambu Studio Version

2.5.0.66

Where is the application from?

Bambu Lab Official website

OS version

MacOS Tahoe Version 26.3.1

Additional system information

Macbook Pro M5 16GB Ram, 512GB SSD

Printer

Bambulab A1 Combo

Printer Firmware Version

01.07.02.00

How to reproduce

1. Slice 4 identical multicolor objects on one plate in Bambu Studio (print sequence: "by layer")
2. Start the print on BambuLab A1 Combo with AMS Lite
3. One object fails bed adhesion early in the print (in my case at ~layer 9)
4. Allow the print to continue normally — remaining 3 objects print perfectly for several hours
5. Use "Skip Object" via Bambu Handy to exclude the failed object mid-print
6. Observe all remaining objects after the skip completes

Actual results

All 3 remaining objects have a visible ~0.5mm layer shift/offset at the exact layer the skip command was executed. The shift
is identical on all 3 objects — same direction, same magnitude, same layer. Everything printed before the skip is perfectly
aligned. Everything printed after the skip is offset by ~0.5mm. The printer continued printing normally otherwise — no
errors, no warnings.

This rules out mechanical causes (belt skip, nozzle collision) because:

• All 3 objects shifted identically at the same layer
• The print ran perfectly for ~4 hours between the original object failure and the skip command
• The shift aligns precisely with the moment the skip was executed, not with the original failure

Expected results

Skipping a failed object should not affect the coordinate system or positioning of the remaining objects. The remaining 3 objects should continue printing without any shift or offset. The skip feature should only stop extruding on the excluded object while maintaining exact positioning for everything else.

Project file & Debug log uploads

JC_Robot red neck V2.3mf.zip

Checklist of files to include

• Log file
• Project file