No repair this bug?

Browser hangs when drill-picking particle system · Issue #7254 · CesiumGS/cesium (github.com)

@111

Contributions are welcome! We’d be happy to review a Pull Request to fix the issue.

Thanks,
Gabby

why?

Changing the call to drillPick to

const limit = 100;
var pickedObjects = scene.drillPick(movement.endPosition, limit);

will at least prevent the browser from hanging up, as a first, quick workaround. The returned list will then contain the same object 100 times, but fixing that will require code changes and a deeper analysis of the source of the problem.