When you have an application that has a form, within that form you have a "Navigate to URL" action option which correlates to a button being clicked to redirect a user to their own Workspace. This happens to open up another instance of Workspace in the same window pane when in theory this should open one Workspace UI instead of 2. Using "Open in a New Window" is not an option.
No errors appear, but you are faced with two identical Workspace UIs in the same page, instead of one.
There is a workaround for this issue. On the form insert a data label and add the following as an expression:
Check this within the properties section & make sure the Literal option is checked.
Upon completion, you should be able to open Workspace within the same User interface pane if a user task is opened.