It doesn't seem to affect any other platform, but lately, the wxAgg test has been failing quite regularly on macOS. wxPython has not had a new release in several months, so it's not directly the culprit.

The failure is just a timeout, so we could increase it, but this test has a flaky marker on it, so it's not just timing out once, but 3 times over.

Is there anyone on macOS who can try this out?