Guild Members not showing on the Guild Roster

Not sure what is happening. I can read the guild history and they are listed as members but they are not displayed on the guild roster screen.

Anyone know the answer? It's driving me crazy.

They might have left...

yes if they leave to join another guild it does not list that in the guild history for some reason. so it just looks like they vanished... A log entry that they left would be nice...

I normally add them to my friends list too, so I can see if they left the guild and still be able to find them later if they did...