List of Image Path: Incomplete Field Submission upon Creating Document

Resolved

So I am to implement a feature that allows users to select multiple images, and when they are ready, they can upload the images at once to Firebase Storage shown as screenshot below:

mediaList is a component state variable that stores a list of ready-to-upload images, the data type is List<Uploaded File (Bytes)>. Action 1 executed successfully (as the images has uploaded to the Storage in the directory users/<id>/uploads), but the problem happens on Action 2.

In Action 2, I wanted to create a document in Firestore upon user submission. The submission was successful, but only the field media_img to store a list of image paths for displaying later was empty. In the end, I couldn't display the images that particular user uploaded. I am not sure whether the option I chose was correct, FF did not show any error either.

Here are the screenshots for reference (Action 2 and records schema):

Any help and explanation would be appreciated!

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