Hi Paul, Did you ever figure this out (or hazard a guess)? From you last post, I guess you didn't... Anyway, I'm having similar problems (I moved from Tiles to Facelets and I now am encountering this issue) - the h:messages tag doesn't show any errors and look at the phase listener tracker that I have, all phases are hit with no exceptions thrown (at least in the log and while setting breakpoints on ConverterException and ValidatorException).. Is there another way I can debug this? Thanks! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3989512#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...