I think that found some kind of issue/bug about sculpting mode. In the case to use clipping zoom to omit visually a part of an object, sculpting doesn’t work, in the case this part is between you and the object.
Is there a reason why you not using the Hide Bounding Box function (shortcut H) in sculpting mode that does the same function in sculpt mode
many thanks for the response. Yeah! really this serves. Its almost the same