Colour/ texture loss for clients in multi user editing

I faced an obstacle with colour/ texture loss for clients in multi user editing.

The scenaro is as follows.

  1. Host’s uploaded assets has colours (normal).
  2. But black on clients’ side in multi user editing.
  3. Noticed that colours/textures in asset folder in Content Browser is black.

Attempted Workaound
Manually adding colour/textures on client’s side in editor.

Hope to investigate why upon exporting to client, colours/textures are automatically removed. Not feasible and would be tedious for assets with many colours/textures.

Host and client’s material respectively