I've seen this bug a number of times before and have never been able to nail down a reproducible case, but I figured I'd finally better report it anyway:
Random fields in the Library will simply disappear. At first on this volume (Job), the Abbreviated Title field was missing. I caused the Library display to refresh itself by cutting and pasting the filter "cambridge bible" back into the Find box, pausing in the interim so it could refresh twice. After the refresh, a different pair of fields (Type and Title) on the same volume had gone AWOL.
Restarting Logos caused the problem to go away. So I couldn't get you any log files.
Sorry to be so vague. It's irritating that I can't track this down, but perhaps you've seen it from time to time too and can have a look in the code to see what might be causing it?
