Polybrush won't paint

Hello,

Just downloaded Polybrush. Despite following the tutorials I can’t seem to get it to paint onto anything with a brush, filling does seem to work though.

Anyone know why this is happening?

ImperfectSkeletalHartebeest

The mesh was originally built with Probuilder. But the problem happens both before stripping the mesh of all Probuilder Scripts AND after.

These are the material settings, I think they’re right.

I’m currently using 2018.2.0b1

Turns out I’m an idiot, I hadn’t noticed I had rolled back to a previous version of the mesh and it wasn’t subdivided, which meant there were no vertices to paint on.