Catching up on the 30 day training, day 3 (busy last few days). Walking through each step as presented.
When I got to turning off the visual filter, I opened the Visual Filter dialog and began to scroll to the note file. Logos crashed. I restarted and tried again and the same thing happened at the same point (when attempting to scroll down through the visual filters).
Here are the logs:
81060.Logos.log
6215.LogosCrash.txt
2273.LogosError.log
This is on 6.9 Beta 3 (6.9.0.0013)