Error after June 2026 Power BI Update

Hi Bron_Smith 

The mid-2026 Fabric/Power BI update tightened the PBIR JSON schema validation on the Service side. The Git-integration importer now rejects any property that isn't explicitly in its schema ("schema does not allow additional properties").

showSentenceFormat is a newly-introduced tooltip formatting property that a recent Power BI Desktop build wrote into your visual.json the last time the report was saved. It lives under the visual container's visualTooltip object as a default, so it gets written even though you never configured tooltips. The Service's schema hasn't caught up to accept it yet, so the import fails.

Try this workaround in your GitHub repo:

• Search the repo for showSentenceFormat.
• Delete that property everywhere it appears in visual.json files (also remove showTooltipFieldsOnly, showValuesInBold, showActionsInTooltips if they show up).
• Commit → sync the workspace from Git.

If you'd rather not touch JSON: disconnect the workspace from Git, publish from Power BI Desktop, then reconnect Git.

Thank you.