I just upgraded from B5 to B6 and tried to run Logos, but unfortunately it crashes at startup every time.
I see the SIgning In and Preparing your Library messages, then the Home screen appears for about two seconds (it does say Beta 6) and it plays the first two notes of the startup music, then Logos 4 dies completely. I tried rebooting but it didn't help.
Log files are attached.
40182.Archive.zip