Missing UI Actions on Idea form and stage field graphic not working on Idea list view.
The issue could be caused if the default value for the state field is modified. The UI Actions' conditions depend on the state field value and check for it to be 1 which is the value for the Submitted state. This also impacts the graphic for the stage field on the list view.
Revert the state field default value to 1 if that has been modified.