I just knew...so we'll just add to the litany of threads about the same problem.
After upgrading the tool PDI debug no longer works, programming seems to work.
Starting debug seems to successfully download the code to the chip as it runs correctly but then a pop up comes up with "Failed to launch" "Timed out waiting for device to reset" and the debug session is terminated.
At times I get the Upgrade screen but that also fails as the tool is already up to date.
And yes I have unplugged the tool and restarted AS6 several times.
The Green led towards the centre of the box flashes as if in upgrade mode?? both during program and an attempted debug session.