Hi,
You should use the jrebirth-users mailing list, I add it in CC
What is the version used ?
Do you have got this stacktrace :
JREvent>>143|CREATE_COMMAND|org.jrebirth.af.core.facade.CommandFacade|org.jrebirth.af.core.command.basic.showmodel.DetachModelCommand|null|
13:49:11.110 [JIT] ERROR o.j.a.c.e.h.AbstractJrbUncaughtExceptionHandler - Uncaught Exception: null
java.util.ConcurrentModificationException: null
at java.util.ArrayList$Itr.checkForComodification(Unknown Source) ~[na:1.8.0_11]
at java.util.ArrayList$Itr.next(Unknown Source) ~[na:1.8.0_11]
at org.jrebirth.af.core.link.NotifierBase.unlistenAll(NotifierBase.java:356) ~[org.jrebirth.af-core-7.7.3.jar.pack.gz:na]
at org.jrebirth.af.core.link.AbstractWaveReady$4.runInto(AbstractWaveReady.java:498) ~[org.jrebirth.af-core-7.7.3.jar.pack.gz:na]
at org.jrebirth.af.core.concurrent.AbstractJrbRunnable.run(AbstractJrbRunnable.java:78) ~[org.jrebirth.af-core-7.7.3.jar.pack.gz:na]
at org.jrebirth.af.core.concurrent.JRebirthThread.run(JRebirthThread.java:172) ~[org.jrebirth.af-core-7.7.3.jar.pack.gz:na]
13:49:11.701 [JavaFX Application Thread] INFO o.j.a.c.c.b.s.FadeTransitionCommand - Remove AnchorPane[id=AnchorPane] from stack container