Every time I update to a new release, beta or otherwise, Logos reverts back to the default column visibility in the Library. It does remember my customizations when I close and reopen Logos in the same version, but every new update, I have to go back and reset my column preferences again. This is a pain.
See also the long-standing problem of the Collections pane not remembering column customizations even within the same version, when you close and reopen Logos. I know I'm only one small voice, but I'd like to see these addressed, as they've been around for a long time, and there was a small glimmer of hope that the latter would be dealt with in an upcoming release. Please take care of these both together, as they seem related and are probably not that big a deal to fix.