Hi Smithy, thanks for the quick reply!
I have Ultimaker tough PLA in the AA core and generic PVA set for the BB core. I'll try with a normal PLA instead and see if it'll allow me to select the extra fine. 🙂
I cant select the "extra fine" resolution in Cura anymore. Suddently it just isn't available to select. It's still there in Cura, but clearly it's greyed out. Why?
I'm using ultimaker 3, with brand new 0.4 AA and BB nozzles installed.