When editing the docx document and rebuilding a personal book, this error will occur after 2-4 Build Book commands without a restart of Logos. This appears to be a regression, but not as bad as the original bug.
For me, the quickest way to clear the error is to restart Logos. These logs are from three failures earlier this week. I did not archive logs of the latest failure which occurred a few minutes ago.
8446.LogosLogs.jackcav.20160519-145615.zip
5633.LogosLogs.jackcav.20160519-154109.zip
6470.LogosLogs.jackcav.20160519-155236.zip