Maschine Mk3 downloaded perfectly. I clicked on 'add library' and browsed but couldn't find the library. Could you help?
While you supply zero information about the OS used and also do not tell which version of Native Access that you use then it sounds as if you probably are using the old version of Native Access. You can not install Ozone 11 using the old version 1 (?) of Native Access, you need to be using the Native Access 2 (is only 2 by name version is now 3.14.0) : Be sure to be using latest version of Native Access for your OS (unless you are using a legacy OS , Mac 10.15 and earlier / Win 7 downloads).
If you are using a legacy OS that can not use the new version of Native Access then alas then you can not install the Ozone 11