Hi I'm from Brazil I started using zbrush recently, and using dynamesh I came across this error at (unfreeze subdivision levels) it gets with crystals in places that were not for this one. (Translation made by google translator)
The Freeze/Unfreeze options are more for making changing to the topology while still preserving previous subdivision levels. Chances are, 90% of the time you probably shouldn't be freezing the mesh during dynamesh. Just delete all lower subdivision levels before running dynamesh and there will be nothing to freeze.…