Hey, try "license" or "add" when you look. I assume your not using centralised licensing either? It is very odd I must say. You can make other changes to the controller right, it's not got a messed up file system or anything?
The only other way I can think is to import the license and don't reboot then export again?? On the cli type "license export <FILE name="">". This will create a file in flash with the name you provided. That file can be copied off the controller via FTP or TFTP and can be copied back down and loaded using the command "license import <FILE name="">".
Maybe the above will work? If you can post the output of tech-support and we can review</FILE></FILE>