I've got a problem where some particles of my hair particle system go underneath certain faces.
1 Showing (poorly drawn) faces with missing particles
2 Wireframe of image 1, showing me that there are indeed instances of the particle system there, just underneath the surface
3 Render of image 1
4 Shaded mode of different part of the image with the same issue, faces with the problem are indicated by green arrows
5 Vertex weight paint of the same part of the image as 4