I've been running into an issue on Power BI Desktop (April 2023). A report that has been previously working with a python script step in the middle of the Power Query Editor steps now suddenly stalls and never finishes running (I let it timeout on a refresh - took 2 hours to timeout).
In the home directly where the intermediary files are stored for running a python script, I was able to stop the refresh keeping the intermediary files and ran the python script itself without any errors. All dataframes in the python script were saved to new CSVs as intended due to the appended end to the python script by Power Query so the user can choose which one they want to load into their table.
All datasources inside this Power BI file are python scripts to make calls to REST APIs, and they run without error, but this one intermediary step is breaking the entire report from refreshing data. I'm at a loss for what could be wrong. I would appreciate any help! Thanks.
Helpful resources
New to Fabric Survey
If you have recently started exploring Fabric, we'd love to hear how it's going. Your feedback can help with product improvements.
Power BI DataViz World Championships - June 2026
A new Power BI DataViz World Championship is coming this June! Don't miss out on submitting your entry.
Join our Fabric User Panel
Share feedback directly with Fabric product managers, participate in targeted research studies and influence the Fabric roadmap.
Power BI Community Update - March 2026
Check out the March 2026 Power BI update to learn about new features.
