Vulnerability reports only showing OIDs - command line to show database update status?

This could be also related to the following:

You also might want to give the newly released Greenbone Community Edition 5.0.10 released - Greenbone Professional Edition - Greenbone Community Forum a try (Now with GVM-10 instead of GVM-9 as used on GOS 4.3).

AFAIK there has been a lot of work done related on the feed update topic in this new major release.