Three days ago I reported this issue: http://www.gravityhelp.com/forums/topic/delete-values-with-user-registration.
I got a new beta version of the User Registration plug-in via Chris Hajer. It solves the previous stated problem, but it introduces a new issue: I can't save the profile image anymore.
Here's what I'm doing:
In the user profile I've added a field:
<tr>
<th><label for="user_foto">Avatar</label></th>
<td>
<input type="text" name="user_foto" id="user_foto" value="<?php echo esc_attr( get_the_author_meta( 'user_foto', $user->ID ) ); ?>" class="regular-text" /><br />
</td>
</tr>
and I save it with:
update_user_meta( $user_id, 'user_foto', $_POST['user_foto'] );
In my form I've added a file upload field like this:
And I mapped it with User Registration like this:
Like I said earlier, this worked fine until I've installed your version. Can you analyse what's going wrong?