What is the problem?
When I use Octoprint there is at a random height a shift in my print. First I thought something with the is bad or the steppermotor is broken. Yesterday I saw the issue with my eyes. The shift was caused because the Y axis steppermotor stops turning while the X axis is still moving. After a few seconds it starts turning again.
What did you already try to solve it?
I checked all my wires and replugged all the connections to my board.
I disassambled the steppermotor and checked if something is blocking it by turning the shaft or if some dirt or dust is causing it to stop turning.
I started the same print from my SD card and the issue was gone. The print came out like it should.
So after investigating I know that the issue is caused by Octoprint. I then started to look into the logfiles but I think there seems everything to be ok.
I'll reprint the part today and then post the octoprint.log and serial.log here.
Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware, what kind of hardware precisely, ...)
Octoprint Version 1.5.3
OctoPi Version 0.18.0, running on Raspberry Pi 4 Model B Rev 1.1
Ender 3 Pro with Marlin 22.214.171.124 on a Fysetc Cheetah 1.2b board
I also read that there are some issues with serial connection caused by Marlin. Because I'm new here and start looking into the threads now maybe someone knows this issue or maybe it sounds familiar to a similar one?
I followed the link for the serial log but I got " Website blocked due to reputation" and I'm not about to continue past that point. Since this log is probably essential to helping to solve this problem, please post it on a more reputable site (I had no problem with pastebin).
I don't see anything unusual in the serial.log. There have been other reports (in this forum) of Y stepper problems with the Ender 3 but it appears that you have replaced the stock Ender 3 controller board and firmware. Maybe someone else will have something useful for you.