After updateing to 10.0.40 I was missing MasterRig-plugin. I checked with my previous 9.5 version, which I still Have on my comp, and the plugin was there. Then I noticed that I also was missing a lot of other plugs.
So I tried to reinstall the 10.0.40 but it didn’t change anything.
I check with my element version on my LapTop, and there it was missing also.
Then I uninstalled wavelab 10 from my comp, and made a new full install of 10.0.20 , and suddenly everything was fine.
Installations was done via the Download manager!