Dark spots appear on the model

Hello, please help. I don’t understand how it happened. these spots do not affect the topology. I can’t even smooth it out. at lower subdivided levels this is not visible, but at higher levels these spots are more clearly visible. I checked the polygroups are correct. Does anyone know how to fix this bug?IMG_20210830_150052_642

Hello @nukeista ,

If you believe this is a bug rather than an issue related to your topology or subdivision process, you might try upgrading your program to the most up to date version of ZBrush. Each new version of ZBrush contains fixes for issues that your version of the program may be missing.

If the problem is the same, please contact Pixologic Support. We’d be happy to take a look at your issue.

Thank you! :slightly_smiling_face: