@dlcfr
I think I found a clue in your post as to what the bug is. You stated that you recently updated your Ubuntu install to the latest.
From what version to what version?
This licensing thing is as much of pain in *** as it is in you all's.
My goal was for this to be painless and the most flexible licensing system ever.

I tried finding something off-the-self, but could not find anything for Linux. Worst, the solutions for Windows were very inflexible.
So, I wrote my own from the ground up.
I hope this is the last bug. Else, I will rip it out and leave FlexRAID unprotected on Linux.

Anyway, update 7 will be out on Friday with all the necessary fixes.