Dyntopo adds vertices but does not deform mesh I am sculpting some things using dynamic topology. Everything was working great, but then my mesh stopped deforming.  Vertices are still added, but the mesh doesn't deform. 



Image 1 This is the mesh before I try sculpting with dynamic topology.



Image 2 This is the mesh after sculpting an area with dynamic topology.  Notice the vertices have been added but the mesh has not deformed. 




Image 3 &amp; 4 Show brush settings.
It would appear that your custom brush type is set to simplify, change it to something that deforms the mesh.



From the manual page


  Simplify - This brush collapses short edges (as defined by the detail size) whether or not the Collapse Short Edges option is enabled. This brush has no effect if dynamic topology is not enabled. It can be found in the Brush ‣ Sculpt Tool menu.