Hi James, I have it working now.
I had kicked off the Ingest Server AFTER trying to process the clips, where it still failed (it had said it was already running).
However, rebooting, opening the scene, making sure the ingest server was running PRIOR to opening the Live Link Hub did allow the Takes to process through.
I may well have managed to confuse it in the first instance and it never picked it up. I had gone and checked it was running before posting this message, where it said it was already running but I must have managed to confuse it somehow… or its a bug in the procedure if something is done out of order. Unsure.