I have upgraded Rapture Pro to 2.00.4.25 and Sonar to Newburyport. Rapture Pro was authorized and started working. I shut down my PC. The next morning, I booted up my PC, and Rapture Pro was still authorized and operational. I shut down the PC. Later that day, I booted up the PC, and Rapture Pro had reverted to demo mode.
I then authorized Rapture Pro following the offline authorization procedure. I did not receive a message box that Rapture Pro had been authorized, but Rapture Pro nevertheless seems to be working and is authorized. I shall observe and report back on how stable its authorization is over the next few days.