I have a lookup table that contains details about Nessus plugins -- the Nessus ID, Plugin Name, Risk Factor, and a few other fields.
I then lookup data from that table and append it to the results from the vulnerability scanner. For some reason, those lookups are failing consistently for certain plugin IDs, but not others. I've double-checked the lookup table and it contains the data I'm trying to match against.
For example, this search does not return the nessuspluginname from the lookup table: