So this is a weird thing that happened. I just loaded up zbrush and went to load up a dynamesh sphere like I always do but when I did this happened. I have zbrush 2020.1.1 and was wondering how to fix this. I have messed with any setting it just appeared like this. I can’t seem to use any of the brushes on, I can mask and use the transpose tools on it but other than that nada. How can I fix this? Is this just a bug? Is it a known bug?
The sphere appears somewhat flat to me. My wild guess is that you drew it out on the canvas with the Z Intensity slider set to a value of less than 100. Doing this will produce a flattened sphere that can’t be fully interacted with–masking and clipping yes, sculpting no, just as you describe.
Other concepts to understand:
Make sure you are working with a live 3d tool in Edit mode..
Be sure to load the tool into a fresh session. If you load a ZPR file, many settings get saved in those files, and will affect any objects you load.