Did those two fixes: JDK-8222214: Fix TableView content disappearing on user pressing UP https://github.com/javafxports/openjdk-jfx/pull/450 JDK-8210973: Set the focus to the owner window when current window is closed https://github.com/javafxports/openjdk-jfx/pull/451 Will probably work on more, pure fun :)