FB 8 logs intermittently not showing

We had recently upgraded to FB 8 on one of our build servers and have been seeing what seems to be an intermittent issue with the logs not showing.  
I will open FB to review the most recent build log, but after selecting that log nothing is being displayed.  Once I exit out and come back in, the log will then be visible.  Has anyone else experienced this?  If this wasn’t an intermittent issue, I’d say the logging settings would need to be reviewed.  

We haven’t been seeing this in our testing. It could be a timing issue we are unaware of, as messaging and threading are using in this location. Are there any bug report text files in the temp directory for the user? Also what are the steps you use when the issue occurs, and how large are the logs typically?