Just a few things that have happened to me and that I have discovered.
When I first updated to the new firmware I could not access Dashboard. I was also not able to access any files from my blu ray player. I got a message that no files existed. I was however able to access my files from my computer as well as my ios apps.
It was suggested I do a power cycle so I shut down my drive via the windows app.
After I rebooted, I was only able to access TWO video files out of a few hundred on my blu ray player. All the others I was able to see all my files.
I tried going into Dashboard using my desktop icon, nothing. I tried launching Dashboard via the Windows app and it worked!
Upon closer inspection, the update changed just about ALL the settings.
I am admin but it was set that I had NO access. Media share was off etc…
Not sure if this is any great discovery but so far its helping get things back to normal for me.