SYMPTOM:
When creating or editing an attribute form, users notice that some of the table icons appear with a higher transparency setting than usual, as shown in the screenshot below:
In the example above, table V02 shows the normal representation of a table in the attribute editor. However, the icon for table V0 is more transparent.
CAUSE:
This behavior can be seen when editing a component of the ID attribute form of a compound attribute. A table icon is shown as transparent when the table can be selected as a source table of an expression, but the table cannot be selected as a source table for one or more components of the ID attribute form of a compound attribute. Tables that can be selected as source tables of all components of the ID attribute form of a compound attribute will appear normally.
