When you say there are sounds missing, do you see the notes mapped (in blue) on the Kontakt keyboard? Have you done anything to the ";purge"; option in your tenor instruments? (see screenshot) If so, some samples may have been unloaded, and you should select ";reload all samples.";
If that's not working, I'd recommend running the VDL 2.5.2 library updater which can be found on the Downloads page of the Tapspace site.
Legacy Forum Post
about 10 years ago
Tried that, still to no avail
Tried to reload the samples and do the update. still no luck.