Yea Javascript in a plugin action needs to restructure the JSON a little bit into a proper array like:

(rest of the fields),
"clips:": [
{"id": "0925b59b-1eef-4e03-a854-6903365001ef",(rest of the fields)},
{"id": "9c051494-9419-4643-b704-7871d9fee0f",(rest of the fields)}
],
(rest of the fields)

So Bubble understands its a dynamic number of clips in a list