I know the same field component is reused. I have used this kind of structures (field in loop) extensively in a previous project on Tapestry 5.3 without any problems. That's for sure a regression between 5.3 and 5.4, probably caused by the removal of the redirection after validation failure in a form.
Thank you for the workaround, that would be useful if the bug cannot be fixed fast enough. But your demos seems to run on Tapestry 5.3.7... have you checked that works on 5.4 beta ? 2015-04-30 10:35 GMT+02:00 Lance Java <lance.j...@googlemail.com>: > The problem is that the same field is reused for each loop iteration. See > here for a workaround using a FieldSnapshot to record the errors. > > http://t5stitch-lazan.rhcloud.com/mapbindingdemo >