OS Mavericks update, Nuendo 6.5 won't launch

Hello John,
Every time I update something it seems the LCC needs updating. It was especially a pain when I grabbed all the eLicenser keys off the workstations and updated only the licenses to N6.5. Naturally they wouldn’t work on their respective workstations that had N5.5 anymore, so I had to fire all of them up and install the newer LCC to run N5.5. A bit silly.

Give that a try and see if it helps.
H