From another post, it seems that metadata is not requested for newly downloaded resources. Under the previous update model, resources would be added at a restart, and shortly after all restarts, a metadata update would be triggered. Thus adding new resources always indirectly triggered a metadata update.
Under the new model, resources can be added at any time, and therefore they are not always followed by a metadata update. This can cause problems, as noted by the post linked to above.
I suggest that after a resource has been installed, Logos should request a metadata update.
