Page Performance reports work well in the default "Pages" report's hierarchical view,
but as soon as the report is flattened (a very often used feature),
then Page performance reports don't work (empty graph).

Expected Behavior

Graph with data eg:

Current Behavior

Steps to Reproduce (for Bugs)

• Go to Behaviour > Pages report.
• Flatten the report
• Hover on a row and click "open page performance report"
• The report displays no data

Note: on the demo it does not anyway as it's missing performance data. But can be reproduce in any other matomo

Your Environment

• Matomo Version: 4.3.x