Hi Antoine, i've just release a new script and when i update the script's list, the new one is not visible. I can see it if i use 'Tools->Scripting' but when i want to use it ('Movie'->'Get Information'->'From internet using a script') it does not appear. I try to uninstall AMC and install again nothing's changed.
From editor choose scripts "Properties" and check for "Get info from web" is set to "True". This should be the reason, else check that you have set a proper language for your script and set this language to visible on your list.
Which script is it? It may also happen when there is a blank line at the top of the script. Sometimes I accidentally leave one when I paste new script contents.
If you just change the property as bad4u said, you may loose script options (if the reason was that blank line).