I currently have a reasonable amount of Y-axis Ghosting. Had some issue with belt guidance (front guide was misaligned), so the belt is slightly damaged (ordered new incl 0.9 degree steppers). So hardware is not 100% error free.
I noticed the hotbed is just not moving fluently back and forth. Have already tried replacing the bearings without any improvement (actually went back to the originals).
Doing some PETG small prints right now on which you would notice no ghosting, but did an XYZ cube last week in which you could easily see it.
Do see other topics making the suggestion it is related to a specific version of ADVI3++ (4.0.6).
Can this be in any way related to the firmware? It is the firmware telling the stepper what to do.
Wanhao Dup I3 Plus with Advi3++ 4.0.6 installed. Several upgrades installed for belt guidance , Microswiss Hotend, Original BLTouch.