Marks didn't applied on node that parent node allows marks

Hi, I am trying to create a new node that works as a parent for a custom node called ‘media’. The purpose is to apply link marks to the custom media node within this parent node, which I’ve named mediaBlock .

// here is new parent node
export const ParentMediaBlock = Node.create({
  name: 'mediaBlock',
  group: 'block',
  content: 'media*',
  marks: 'link',
  renderHTML({ node }) {
    return ['div', { class: 'media-block' }, 0];

// here is my custom node for rendering images using NodeView.
export const Media = Node.create<MediaOptions>({
  name: 'media',
  inline: false,
  group: 'mediaBlock',
  draggable: true,
  selectable: true,

When I insert an image file, it gets inserted successfully as follows in the HTML:

<div class="tiptap ProseMirror ProseMirror-hideselection" contenteditable="true" tabindex="-1" translate="no">
  <div class="media-block">
    <div class="react-renderer node-media" contenteditable="false" draggable="true"></div>
  <!-- ... (other content) -->

My expectation was that applying the ‘link’ mark to the media node would work because its parent node, mediaBlock, has the attribute marks: 'link'. However, this doesn’t seem to be the case. What should I do to make it work?