I am getting layer splits that always happen in the same place like these:
Interestingly enough, when I do multiple prints on one plate, sometimes some prints get split and others don’t. I don’t think this is a slicer settings problem or moist filament because it only ever happens at one specific place. The rest of the printed item(s) is fine.
I also don’t have warping at the edges of the upper split layer that signifies slicer setting problems. Another interesting note is that there seems to be little evenly spaced pulsating dots along each side of the split (might be hard to see in the photos).
I have checked the Z-axis for anything that has gone loose, greased the lead screws, adjusted temp, but nothing seems to help.
Edit: I recall having similar problems once with Colorfabb Economy PETG on a different printer (Artillery SWX1) but I can only recall it from memory, no physical prints to prove it so it might have been something else.
However that does lead me to think that it may in fact be something with the slicer if it happened on separate printers printing different parts, but maybe not the direct slicer settings, rather the geometry of the model causing it like r.. github said. Filament: Inkstation black PLA Printer: Creality Ender 3 with added BLTouch.