I’ve been working with this issue. Seems to be coming up on more part of the sculpt. I’m not sure why. When using the smooth brush I get all these bumps coming up. See the video below:
I have recalculated normals, I’ve used options from sculpting add ons. Specifically the speed sculpt optimization tool, the make manifold option under the 3d print add on.It’s happening on both sides so the Symmetrize option does not work. The flatten brush gets rid of it, but it causes other issues. Anyone suggestions?