Other CCK-native fields (with identical settings) were removed, but the e-mail field (part of the email module CCK field) was not.
My guess is that it is not using the standard [field][0][#value] element structure (which I have a feeling I have noted before when theming this field type).

Comments

yched’s picture

yched CreditAttribution: yched commented

Yes, some contrib CCK modules do not respect the expected structure for their widgets. Usually they do not behave right when included in a fieldgroup as well.

This is probably a bug that should be filed against the offending field modules.