"Step not yet complete in Data Cloud — We can't find a data stream for the Knowledge Article object."

Hi Trailblazers,    I'm stuck on the verification step for "Ingest Knowledge Article Data" (part of the Unstructured Data in Data Cloud project) and I believe this is a verifier bug. I've spent over 2 hours troubleshooting and everything is correctly configured. Hoping someone has seen this before!    Badge/Project: Unstructured Data in Data Cloud  Step: Ingest Knowledge Article Data  Trail: Become an Agentblazer Legend 2026  Error: "Step not yet complete in Data Cloud — We can't find a data stream for the Knowledge Article object."    Playground Details

• Type: Data Cloud Custom Playground (provisioned directly from the challenge page — not a regular Trailhead Playground)
• Org ID: 00DdL00000zRqIm
• Username: mailto:epic.1ab017837498865900@orgfarm.salesforce.com
• Created: 7/11/2026
• Expires: 7/14/2026 at 1:00 AM GMT+1

    What I completed (all steps per module instructions)

1. Launched Data Cloud Playground from the challenge page
2. Opened Data Cloud app → Data Streams → New
3. Selected Salesforce CRM data source
4. Selected the Knowledge data bundle
5. Reviewed default fields → clicked Next
6. Clicked Deploy — all 7 streams deployed successfully

    Current State — All 7 Streams Active    I have checked the following: 

Knowledge__ka_Home. | Active | 20 | 7/11/2026, 2:12 AM

Knowledge__kav_Home | Active | 20 | 7/11/2026, 2:12 AM

DMO Mapping confirmed

• Opened Knowledge__ka_Home → Data Lake Objects tab → clicked Review
• Mapping: Knowledge_ka_Home → Knowledge Article (DMO)
• Fields mapped: Article Number, First Published Date Time, Knowledge Article Id (Primary Key), Last Published Date Time
• Status: READY, Data Space: default
• Clicked Save on the mapping screen

    Troubleshooting steps already tried

1. Launched org via the challenge page Launch button (not Hands-on Orgs page)
2. Verified using "All Data Streams" view (not just Recently Viewed)
3. Tried verifying in a fresh incognito/private browser window (Chrome)
4. Deleted all 7 streams and redeployed from scratch — same error
5. Saved DMO mapping explicitly before verifying
6. Attempted verification 10+ times over a 2+ hour period
7. Confirmed no other Data Cloud orgs active in the same browser session

  Has anyone else hit this? Any workaround would be much appreciated.