could not load full row data

Hi, When I click on any fieldsome of some (not all) records I receive the error "could not load full row data" and I can't modify the field's value. Why?

thanks in advance

Watch out for the lines in the log panel at the bottom, and/or paste these here. Probably the table you are editing does not have a primary or unique key.

Thanks! Indeed the problem was due the lack of key field!