greyed lockText box for table in group?

[Dr. Hawkins]

I have a table in a group that may "summoned" to assist the user.  The
group is normally hidden, and has its backroundBehavior set.

When made visible, the fields may be typed into.

The regular fields all work, but this simple table is locked.

And when I go to the property inspector, the lockText button is both
checked and greyed.

The group has no locktext set, and the other fields can all be used.

dontWrap is also locked & greyed.

Focusable, focusborder, visible, showhilite, and showborder are all set.

basic table and cell editing are set, cell formatting is not.

I don't understand what can be happening here:  as I understand things,
only the group  properties should be inherited, and they should be capable
of being overridden.

What else can cause this behavior?

(the group is placed on several cards, but not with sharedText, and is not
part of another group.)
-- 
Dr. Richard E. Hawkins, Esq.
(702) 508-8462