I have a page with 3 required fields. On change field A reRender action is done on field B and it works correctly. I fill in fields A and B and left field C empty, then submit a form. Validation error appears on field C and it is ok.
After submit with validation error reRender stops working, why? It works well before submitting. I noticed that if field B is read-only problem described doesn't occur.
Has anyone found similar problem? I would welcome any ideas and cues.