I’ve set the PVA settings to everything listed by Okerampa and yet my PVA turns into an outright mess
Double check your settings. I think the default interface layer for PVA is Concentric. All the settings below with a red arrow were automatically selected when I enabled “Support” and chose PVA for the interface material.
But note, that’s just the start. Your issue can be something else, just make sure you are starting at a good point.
Concentric was alright for the first section, soon as it moved to the 2nd…
Adjusting PVAspeed down from 30 to 10 (fingers crossed)
What is the base material? PLA?
It may be an issue which compatibility with the PolyTerra. The looks like what I’d expect to see with incompatible filaments.