Slips while printing

[a4jp.com]

Does anyone here have a problem where the model is printing and the x-axis slips somehow?

I don't have this problem in Slic3r just in Kisslicer for some reason.

It also happens at irregular times.

Any ideas on fixing this?

Do you think it is a software or hardware problem?

[Davide Ardizzoia]

Maybe you set XY speed too high for your hardware ?
OR your print is overextruding, therefore nozzle(s) are stepping into excess material and skipping steps.

Best Regards
Davide Ardizzoia