Auto Bed Mesh: Faulty movement in Y-direction

General Discussion
1

Basic Information:

Printer Model: Ender 5 Pro
MCU / Printerboard: Creality 4.2.7
Host / SBC: Raspberry Pi 3B+
klippy (1).log (249.2 KB)

klippy.log

My issue:
My printer is working fine. There are no faults in stepper movements.
I recently replaced a nozzle and wanted to create a new bed mesh as well (15 points (5 X3).

That part does not work.
In creating the mesh theY stepper does not move properly. It makes a horrible loud sound and moves not enough in the Y-direction. I is not creating a mesh of the whole bed. It 's faulty movement is also not consistent. It has to move twice in the Y-direction. Sometimes there is one faulty movement ( always the first…), sometimes two…

I 'll include a link to a video:

I did not change a thing in my printer.cfg.
To try i made a 20 point mesh and it ended the same way: no proper movement in Y-direction.
For Z-offset i tried the tuning-G-code made by TeachingTech tuning guide (First Layer) on his website. That also resulted in a faulty movement in the Y-axis.
My own prints are fine…

I don’t know where to look to fix it. My .cfg is almost standard for an Ender 5 Pro (BL_touch and ADXL mounted)

Thanks in advance…

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I have not seen something obviously wrong in your config.
Such effects are often (almost always?) electrical or mechanical

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Thanks for your response and suggestions.
It is kind of weird that it (till now) only happend during bed meshing and G-code tuning on first layer.
My prints have no steps or layershifts…
It that still possible by electrical or mechanical causes?

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