So this is in overture petg, and it printed really nicely up to this point. I did wonder if maybe it got high enough that it started to wobble, but I then noticed (check pics) that it lines up pretty much exactly with the internal feature, so it seems like… I have no idea at this point lol. I would say maybe some kind of resonance artifacts, but the p1p is meant to counteract resonance/vibration issues, and this looks more like an extrusion issue or something. I can’t even guess what’s causing this, hopefully someone has some ideas so I can fix it!
which speed did you print at? i experienced similar issues, and also separating layers with the stock / standard speed. in an enclosure it works much better, but with the open printer it’s probably too cold. it looks like the filament did not get melted enough up there. try with slower speed if this solves the issue