Well, (*prepares to run and hide*), I removed the old install and put the new beta in, and filling out the configuration.exe.... and wouldn't you know it.... "Unfortunately we were unable to locate your product directory." is still there ..
A couple of things. First, you don't need to remove the %APPDATA%\EDDI directory when you upgrade. Did you do this? If not, then the old settings should still be in place, so if they vanished that is strange.
Can I just confirm exactly what you did with attempting to find the log location? The process I would expect would be:
- Start up configuration.exe
- Start up Elite: Dangerous (not just the launcher, the full game)
- Hit 'Obtain' on the Netlog tab