Alert code showing up as zero - 'Hobbit [0] sac-pdbs-01.mydomain.com:cpu warning (YELLOW)'

I may be missing a config step here... I am getting alerts that show up with zero for the numeric code. At the same time, I get the standard numeric code. See the examples below.

Hobbit [0] sac-pdbs-01.mydomain.com:cpu warning (YELLOW) Hobbit [831423] monitor.mydomain.com:hobbitd warning (YELLOW) Hobbit [924556] monitor.mydomain.com:bbgen warning (YELLOW)

Has anyone seen this before?

Thanks, Brian