When creating a route with freeform designer and user fills out the details on the "Create a route to protect an application" page. In case the route ID is not taken, the user should get to the design screen (canvas).
After clicking on "Create route" on the before-mentioned page, the user never gets to the design canvas. Even after changing the route ID, the field check will always fail.
Although the user never gets to the canvas via the "Create route" flow, the new route appears in the list of routes (e.g. http://ig.example.com:13080/openig/studio/#routes/). After clicking on the route, the user gets in fact to the design canvas.
Testing with Identity Gateway 6.5.0-SNAPSHOT Build 79d4cd7930 (2018-June-06 02:32)