We have a user showing us screenshots of where they are unable to view one of the steps in the process that has been completed. The blue hyperlink is not showing for them.
I am not familiar with any security options to restrict specific steps in the action history pane. I thought anyone who participated in the process had access to all past and future submissions at any time.
Here is the view from the user that is restricted on viewing the task where Submit was chosen, but can see all the rest of the task submitted forms.
Here is another users view where they can see the task where Submit was chosen
Forms Version is 10.4.5.282