Hello, another contractor working at client side has resolved this issue. This requires server side setting.
Here is the procedure:
1. Open the QV file, as Open in Server.
2. Proceed to View > Server Objects
3. Then go More
4. The options are different from what we see on local dev version. Go Shared Server Bookmarks, and tick 'Show' on top of the row.
5. Subsequently, users start seeing the shared bookmark.
As in the attached sheet, my side and server side has all enabled the bookmark to be shared in Document Property (local development) and Setting (Server Management Console).
I hope this contribute to the developper with similar issue. I also apprecaite the contractor working at client.