I have been having a problem with folders missing from my WD Photo for a number of months and keep meaning to come and find the solution.
In an earlier thread a WD tech suggested hitting ‘rebuild’ on the advanced settings control panel in the dashboard. I did this and got a ‘waiting’ dialog for what seemed like an age - before I was then told that the request had timed out. So I tried repeating it and no matter how many times I click the rebuild button, nothing happens.
I now only have one (empty) folder in my folder list, even though I know that there are hundreds of folders on the drive.