The problem isn’t the new agent itself, there is something wrong with the new TV agent now.
I have a library I originally created with the new agent, and I got a good list of cast when I created it, but if I do a metadata refresh on a title now the cast row reduces to just 2-3 actors generally, and it had more while still using the new agent in the beginning.
I just did a couple screenshots using Princess Principal after making a snapshot of my dataset so I could roll back after doing this…
Cast row before:
Same cast row after refreshing metadata:
Here’s a fun one. I should mention I actually have two different anime libraries, one on the old agent and one on the new agent. So I can do a real apples-to-apples comparison.
His and Her Circumstances (Kare Kano)
Old (TVDB) metadata agent:
New Plex TV agent (as I found it just now):
After refreshing and metadata just now on the New Plex TV agent:
