[mythtv-users] metadata chaos

[Blue]

Hi

After a resent scan a whole number of Movies with metadata had the metadata, both description and coverart disapear.

menu->i->Change Video Details->retrieve data winds for a while then says FAILED

menu->i->Change Video Details->reset details
menu->i->Change Video Details->retrieve details does works

Some Movies eg Blue Planet II imediately populate the movie

others eg Bladerunner
reset detail
retrieve details

Do retrive data and art
<selecting> does nothing except say something to the db. Art and description are blank
retrieve (again) fails
reset
retrieve fetches the details again

others
<selection> does nothing
retrieve for another movie (may or maynot work
First movie is populated

Can anybody cast light on what is happening?
Running the graber by hand does get data and art,

Thanks
James