@CorpseGoddess: Sorry, I was thinking we had done the debug log before.
And so everyone knows, we've exchanged some PMs and I sorted out the misunderstanding. It was the very annoying fact that the the series info can't be set when sending a book and is only done the next time the device is connected.
And just so everyone knows: I'm guilty of forgetting that this as well and then wondering why the series info isn't shown. So, I'm not surprised when anyone else forgets as well.