Salome_Meca also has nice hex meshing capabilities but they seem to require a lot of manual work (especially the hexa block technique) and there are some serious limitations. All in all, Gmsh is probably the best free hex mesher.
But if new versions of Gmsh can’t handle hex meshes as well as older ones then I think that adding an issue in their GitHub repository would be a good idea. Even if they are aware of this regression.