Well, maybe not a bug but I think IG might be a bit more reliable. So I have an editable grid and one column of this grid has a dynamic action. The purpose of this dynamic action is to set some value to some other column in this grid. When I change type of this other column to Display Item the DA starts to throw "Uncaught Error: Set value not allowed for field." Javascript error. I consider this as documented behavior, although I don’t like it. But at the same time I noticed that the rest of grid's records became uneditable. And if you press Add row button then new record created but all the columns close from editing. @"John Snyders-Oracle", @"Patrick Wolf-Oracle" could you have a look what's wrong.
Demo application