I've looked at the Form customization form to see if there are any locking selections. Locked selection "Lock the field on the form" is NOT checked.
The mail body is a lock on the chrome browser. So when researching this, we made a change to customizations.xml and found that this could be a solution. But there is a problem with this;
I am making changes to customizations.xml. Later, when I look at the entity I imported, there is no change. Entity always reflects the default value.
Hope this helps....
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