New artwork for NBC Nightly News not showing in MythTV

[dheian]

I noticed that there's a new Lester Holt-specific NBC Nightly News art on http://thetvdb.com/?tab=series&id=139911.

When I go to grab the Lester specific art MythTV only shows me the following choices:

Fanart: The Blue Map "with Brian Williams" uploaded April 29, 2014 12:48
Posters/Coverart: The "with Brian Williams" May 19, 2012 19:08
Banner: Oddly enough, the only banner Myth is showing is the Lester Holt photo banner uploaded September 5, 2015 03:01

If you're familiar with Myth, any idea why it wouldn't show in Myth? Or is this some sort of timing/cache issue with TheTVDB?

Thanks.