As it turns out, the sharing violation isn't solved with the update of Steinberg elincer. When I close cakewalk and open again and start working on my test-project I have the same sharing violation when saving. So I "save as" and can then save the new project as long cakewalk is open. But when closing and restarting cakewalk the same problem appears.  My old projects without articulation maps are not affected, there I don't have this issue up to now