com.sun.javafx.event.EventHandlerManager at line 267

[madhephaestus]

Auto Reported Issue
OS = Linux amd64 x64
java.lang.NullPointerException: Event filter must not be null
at com.sun.javafx.event.EventHandlerManager.validateEventFilter(EventHandlerManager.java:267)
at com.sun.javafx.event.EventHandlerManager.removeEventFilter(EventHandlerManager.java:128)
at javafx.scene.Node.removeEventFilter(Node.java:8284)
at org.dockfx.DockPane.undock(DockPane.java:563)
at org.dockfx.DockNode.undock(DockNode.java:931)
at com.neuronrobotics.bowlerstudio.BowlerStudioModularFrame.lambda$12(BowlerStudioModularFrame.java:365)
at com.sun.javafx.application.PlatformImpl.lambda$null$5(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$6(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
at com.sun.glass.ui.gtk.GtkApplication.lambda$null$10(GtkApplication.java:245)
at java.lang.Thread.run(Thread.java:748)