According to the logs you have the series type set to anime, for a series that is almost certainly not anime and likely no anime categories set for your indexers since no actual search is executed.
Thank you so much for coming back to me. I have absolutely no idea when or more importantly how a series type gets changed to Anime. Is that something I can do through the interface?
In the mean time, I have worked out (thanks to your post), that if I delete the series and re-add it, then all goes well for that series. I guess that means I am going to have to delete my 80+ series and re-add them all