Performance Analyzer for Meta Quest not showing any data

I’ve built and deployed the apk as a Development Build and the Meta Quest 3 is showing as Active in MQDH.
If I go to Performance Analyser tab I can see all the performance counters but there’s no data.
If I press Record on the ‘Trace Analysis by Perfetto’ button then I get lots of CPU counters showing in a web browser.

I need to the GPU counters - any idea what I need to do to record GPU timings?