To reproduce, run the following on a macOS (Ventura 13.3.1 on M1 was used).

$ gradle --continue --info -PFULL_TEST=true -PUSE_ROBOT=true cleanTest :systemTests:test --tests PageFillTest

2023-04-17T09:30:31.077-0700 [DEBUG] [TestEventLogger] PageFillTest > testPageFillRendering FAILED
2023-04-17T09:30:31.077-0700 [DEBUG] [TestEventLogger] java.lang.AssertionError: Timeout when waiting for focus change
2023-04-17T09:30:31.077-0700 [DEBUG] [TestEventLogger] at org.junit.Assert.fail(Assert.java:89)
2023-04-17T09:30:31.077-0700 [DEBUG] [TestEventLogger] at org.junit.Assert.assertTrue(Assert.java:42)
2023-04-17T09:30:31.077-0700 [DEBUG] [TestEventLogger] at test.javafx.scene.web.PageFillTest.testPageFillRendering(PageFillTest.java:159)