WMC not creating Thumbnails anymore (recorded tv)

[tzr916]

Since a few weeks ago, WMC is no longer making Thumbnails for Recorded Tv. None on main WMC machine, none on extenders. So all I see now is a blue box next to the name of the show. Once I select the show, the thumbnail is there. Exit the show details, back to all the shows, and there is no thumbnail.

Any way to make it start showing thumbnails again?

[3rob3]

I think it's because one of your recordings is corrupt, or one of the recording's thumbnail is corrupt. If you can figure out which one and delete it they should come back. You can also try this:
http://www.thegreenbutton.tv/forums/vie ... ils#p89614