Dashboard "Export as HTML" fails for job-associated notebook dashboards (UI only)

Data Engineering

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Context:
A notebook is scheduled to run as a Databricks Job. The notebook has an associated dashboard. When viewing the dashboard from the job run, exporting via "Export as HTML" fails.

Error:
When clicking "Export as HTML," the download fails and the following error is displayed:

{"error_code":"INVALID_PARAMETER_VALUE","message":"Path (???) doesn't start with '/'"}

Environment:

Databricks Runtime: 16.4.27
Cluster: d3.2xlarge driver, d3.2xlarge workers, 1–4 workers, On-demand and Spot (falls back to On-demand), autoscaling enabled

Reproduction / isolation:

Method Result

Export from dashboard in interactive mode	✅ Works
Export from job-run dashboard via UI ("Export as HTML")	❌ Fails (error above)
Export from job-run dashboard via API (api/2.2/jobs/runs/export)	✅ Works