Sculpt joined objects ?

when i try to sculpt an object which consists of 2 joined objects i always get ugly holes when i try to “sculpt together” the former 2 objects (which now are one object)
even after using the boolean modifier (union) to union these both objects together these holes appear…
Dyntopo (subdivide collapse, collapse, subdivide) doesn´t help :confused:
the mesh is to complex to merge each vertex…
help !! ^^

Did you apply the Boolean modifier? Or is it still “active”?

applied ofc. … :confused: