OK, it seems I will do anything to stay away from work
After much testing I came to the conclusion that the problem is related to these TV names. I copied your chunk and created the TVs and as you said it did not work. Then I changed the TV names and they showed up. Another way to make them show up is ti add the ’tv’ prefix to the names in the chunk, so itemone becomes tvitemone like the old Ditto method.
This should not work but it did for me. For the record I am testing with 0.9.6.1 with Ditto 2.0.2.
So the quick fix would be to add ’tv’ to the itemone, itemtwo, etc.. placeholders. Give this a go and see if it helps.