Problem Summary:
I am unable to package media sets for Marketplace, despite having Owner role and being within the correct Organization. All media sets show “no data access” in Data Lineage, which also blocks any downstream datasets that depend on them.
These are tiny datasets, with notional data. Used in an ontology object and application. But to get the “full” experience of the app, getting these short .txt files would be great.
Environment:
All resources created within the same Organization (Enrollment with a couple of orgs. I belong to the main org, I am also a guest and an orgowner/manager for this specific org where I do my work)
I am the creator and Owner of all resources and projects
No Markings applied
Resources are in a properly configured Project within our Organization’s Space
What I observe:
Media sets work fine in pipelines - I can build and use them normally in Pipeline Builder and transforms
“Check access” panel shows correct permissions - ISH :
Role: Owner
Organization: ✓ (correct org)
Markings: None
“This user meets access requirements for this file”
But then there is the strangeness for mediafiles and files later down the line.
Additional data requirements
There may be additional data requirements for this file.
Data Lineage shows the problem:
Under “Resource Access” for the media set, it shows: [Org] (no data access)
This is despite being Owner and member of the Organization
Impact on Marketplace:
Cannot package media sets
Cannot package ANY dataset that has a media set as upstream input (due to permission propagation)
What I’ve verified
The Project, folder, and all resources are within the same Organization
I have Owner role on all resources
No restrictive Markings are applied anywhere in the chain
Regular datasets (without media set dependencies) CAN be packaged
I seem to get the same for ALL media sets, not just this one specific resource when I started looking around. I tried downloading, uploading, creating new etc.
For datasets, no problems at all.
Questions:
Is there a specific permission required for media sets that differs from regular datasets when it comes to Marketplace packaging?
Is this a known limitation with media sets and Marketplace?
Is there a workaround to enable packaging of media sets and their dependent datasets?
Any guidance would be greatly appreciated. And if I have completely misunderstood everything and just me not getting it. I am very happy for that help too. 
(This could be the case.. one starts becoming slightly blind after too many hours just searching for this 
)
Thank you!
I added some screenshots. All the erased parts show only that there is only one org as a requirement and that is the same one for everything.
Screenshots
